diff --git a/css/agency.css b/css/agency.css
index 58f2137..06e081b 100644
--- a/css/agency.css
+++ b/css/agency.css
@@ -1,5 +1,5 @@
 /*!
- * Start Bootstrap - Agency v4.0.0-beta (http://startbootstrap.com/template-overviews/agency)
+ * Start Bootstrap - Agency v4.0.0-beta (https://startbootstrap.com/template-overviews/agency)
  * Copyright 2013-2017 Start Bootstrap
  * Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap-agency/blob/master/LICENSE)
  */
diff --git a/css/agency.min.css b/css/agency.min.css
index cf41dae..77ce02c 100644
--- a/css/agency.min.css
+++ b/css/agency.min.css
@@ -1,5 +1,5 @@
 /*!
- * Start Bootstrap - Agency v4.0.0-beta (http://startbootstrap.com/template-overviews/agency)
+ * Start Bootstrap - Agency v4.0.0-beta (https://startbootstrap.com/template-overviews/agency)
  * Copyright 2013-2017 Start Bootstrap
  * Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap-agency/blob/master/LICENSE)
  */body{overflow-x:hidden;font-family:'Roboto Slab','Helvetica Neue',Helvetica,Arial,sans-serif}p{line-height:1.75}a{color:#fed136}a.active,a:active,a:focus,a:hover{color:#fec503}h1,h2,h3,h4,h5,h6{font-weight:700;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}section{padding:100px 0}section h2.section-heading{font-size:40px;margin-top:0;margin-bottom:15px}section h3.section-subheading{font-size:16px;font-weight:400;font-style:italic;margin-bottom:75px;text-transform:none;font-family:'Droid Serif','Helvetica Neue',Helvetica,Arial,sans-serif}@media (min-width:768px){section{padding:150px 0}}::-moz-selection{background:#fed136;text-shadow:none}::selection{background:#fed136;text-shadow:none}img::selection{background:0 0}img::-moz-selection{background:0 0}body{-webkit-tap-highlight-color:#fed136}#mainNav{background-color:#222}#mainNav .navbar-toggler{font-size:12px;right:0;padding:13px;text-transform:uppercase;color:#fff;border:0;background-color:#fed136;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}#mainNav .navbar-brand{color:#fed136;font-family:'Kaushan Script','Helvetica Neue',Helvetica,Arial,cursive}#mainNav .navbar-brand.active,#mainNav .navbar-brand:active,#mainNav .navbar-brand:focus,#mainNav .navbar-brand:hover{color:#fec503}#mainNav .navbar-nav .nav-item .nav-link{font-size:90%;font-weight:400;padding:.75em 0;letter-spacing:1px;color:#fff;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}#mainNav .navbar-nav .nav-item .nav-link.active,#mainNav .navbar-nav .nav-item .nav-link:hover{color:#fed136}@media (min-width:992px){#mainNav{padding-top:25px;padding-bottom:25px;-webkit-transition:padding-top .3s,padding-bottom .3s;-moz-transition:padding-top .3s,padding-bottom .3s;transition:padding-top .3s,padding-bottom .3s;border:none;background-color:transparent}#mainNav .navbar-brand{font-size:1.75em;-webkit-transition:all .3s;-moz-transition:all .3s;transition:all .3s}#mainNav .navbar-nav .nav-item .nav-link{padding:1.1em 1em!important}#mainNav.navbar-shrink{padding-top:0;padding-bottom:0;background-color:#222}#mainNav.navbar-shrink .navbar-brand{font-size:1.25em;padding:12px 0}}header.masthead{text-align:center;color:#fff;background-image:url(../img/header-bg.jpg);background-repeat:no-repeat;background-attachment:scroll;background-position:center center;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover}header.masthead .intro-text{padding-top:150px;padding-bottom:100px}header.masthead .intro-text .intro-lead-in{font-size:22px;font-style:italic;line-height:22px;margin-bottom:25px;font-family:'Droid Serif','Helvetica Neue',Helvetica,Arial,sans-serif}header.masthead .intro-text .intro-heading{font-size:50px;font-weight:700;line-height:50px;margin-bottom:25px;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}@media (min-width:768px){header.masthead .intro-text{padding-top:300px;padding-bottom:200px}header.masthead .intro-text .intro-lead-in{font-size:40px;font-style:italic;line-height:40px;margin-bottom:25px;font-family:'Droid Serif','Helvetica Neue',Helvetica,Arial,sans-serif}header.masthead .intro-text .intro-heading{font-size:75px;font-weight:700;line-height:75px;margin-bottom:50px;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}}.service-heading{margin:15px 0;text-transform:none}#portfolio .portfolio-item{right:0;margin:0 0 15px}#portfolio .portfolio-item .portfolio-link{position:relative;display:block;max-width:400px;margin:0 auto;cursor:pointer}#portfolio .portfolio-item .portfolio-link .portfolio-hover{position:absolute;width:100%;height:100%;-webkit-transition:all ease .5s;-moz-transition:all ease .5s;transition:all ease .5s;opacity:0;background:rgba(254,209,54,.9)}#portfolio .portfolio-item .portfolio-link .portfolio-hover:hover{opacity:1}#portfolio .portfolio-item .portfolio-link .portfolio-hover .portfolio-hover-content{font-size:20px;position:absolute;top:50%;width:100%;height:20px;margin-top:-12px;text-align:center;color:#fff}#portfolio .portfolio-item .portfolio-link .portfolio-hover .portfolio-hover-content i{margin-top:-12px}#portfolio .portfolio-item .portfolio-link .portfolio-hover .portfolio-hover-content h3,#portfolio .portfolio-item .portfolio-link .portfolio-hover .portfolio-hover-content h4{margin:0}#portfolio .portfolio-item .portfolio-caption{max-width:400px;margin:0 auto;padding:25px;text-align:center;background-color:#fff}#portfolio .portfolio-item .portfolio-caption h4{margin:0;text-transform:none}#portfolio .portfolio-item .portfolio-caption p{font-size:16px;font-style:italic;margin:0;font-family:'Droid Serif','Helvetica Neue',Helvetica,Arial,sans-serif}#portfolio *{z-index:2}@media (min-width:767px){#portfolio .portfolio-item{margin:0 0 30px}}.portfolio-modal .modal-dialog{max-width:none;height:100%;margin:0}.portfolio-modal .modal-content{min-height:100%;padding:100px 0;text-align:center;border:none;border-radius:0;background-clip:border-box;-webkit-box-shadow:none;box-shadow:none}.portfolio-modal .modal-content h2{font-size:3em;margin-bottom:15px}.portfolio-modal .modal-content p{margin-bottom:30px}.portfolio-modal .modal-content p.item-intro{font-size:16px;font-style:italic;margin:20px 0 30px;font-family:'Droid Serif','Helvetica Neue',Helvetica,Arial,sans-serif}.portfolio-modal .modal-content ul.list-inline{margin-top:0;margin-bottom:30px}.portfolio-modal .modal-content img{margin-bottom:30px}.portfolio-modal .modal-content button{cursor:pointer}.portfolio-modal .close-modal{position:absolute;top:25px;right:25px;width:75px;height:75px;cursor:pointer;background-color:transparent}.portfolio-modal .close-modal:hover{opacity:.3}.portfolio-modal .close-modal .lr{z-index:1051;width:1px;height:75px;margin-left:35px;-webkit-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg);background-color:#222}.portfolio-modal .close-modal .lr .rl{z-index:1052;width:1px;height:75px;-webkit-transform:rotate(90deg);-ms-transform:rotate(90deg);transform:rotate(90deg);background-color:#222}.portfolio-modal .modal-backdrop{display:none;opacity:0}.timeline{position:relative;padding:0;list-style:none}.timeline:before{position:absolute;top:0;bottom:0;left:40px;width:2px;margin-left:-1.5px;content:'';background-color:#f1f1f1}.timeline>li{position:relative;min-height:50px;margin-bottom:50px}.timeline>li:after,.timeline>li:before{display:table;content:' '}.timeline>li:after{clear:both}.timeline>li .timeline-panel{position:relative;float:right;width:100%;padding:0 20px 0 100px;text-align:left}.timeline>li .timeline-panel:before{right:auto;left:-15px;border-right-width:15px;border-left-width:0}.timeline>li .timeline-panel:after{right:auto;left:-14px;border-right-width:14px;border-left-width:0}.timeline>li .timeline-image{position:absolute;z-index:100;left:0;width:80px;height:80px;margin-left:0;text-align:center;color:#fff;border:7px solid #f1f1f1;border-radius:100%;background-color:#fed136}.timeline>li .timeline-image h4{font-size:10px;line-height:14px;margin-top:12px}.timeline>li.timeline-inverted>.timeline-panel{float:right;padding:0 20px 0 100px;text-align:left}.timeline>li.timeline-inverted>.timeline-panel:before{right:auto;left:-15px;border-right-width:15px;border-left-width:0}.timeline>li.timeline-inverted>.timeline-panel:after{right:auto;left:-14px;border-right-width:14px;border-left-width:0}.timeline>li:last-child{margin-bottom:0}.timeline .timeline-heading h4{margin-top:0;color:inherit}.timeline .timeline-heading h4.subheading{text-transform:none}.timeline .timeline-body>p,.timeline .timeline-body>ul{margin-bottom:0}@media (min-width:768px){.timeline:before{left:50%}.timeline>li{min-height:100px;margin-bottom:100px}.timeline>li .timeline-panel{float:left;width:41%;padding:0 20px 20px 30px;text-align:right}.timeline>li .timeline-image{left:50%;width:100px;height:100px;margin-left:-50px}.timeline>li .timeline-image h4{font-size:13px;line-height:18px;margin-top:16px}.timeline>li.timeline-inverted>.timeline-panel{float:right;padding:0 30px 20px 20px;text-align:left}}@media (min-width:992px){.timeline>li{min-height:150px}.timeline>li .timeline-panel{padding:0 20px 20px}.timeline>li .timeline-image{width:150px;height:150px;margin-left:-75px}.timeline>li .timeline-image h4{font-size:18px;line-height:26px;margin-top:30px}.timeline>li.timeline-inverted>.timeline-panel{padding:0 20px 20px}}@media (min-width:1200px){.timeline>li{min-height:170px}.timeline>li .timeline-panel{padding:0 20px 20px 100px}.timeline>li .timeline-image{width:170px;height:170px;margin-left:-85px}.timeline>li .timeline-image h4{margin-top:40px}.timeline>li.timeline-inverted>.timeline-panel{padding:0 100px 20px 20px}}.team-member{margin-bottom:50px;text-align:center}.team-member img{width:225px;height:225px;border:7px solid #fff}.team-member h4{margin-top:25px;margin-bottom:0;text-transform:none}.team-member p{margin-top:0}section#contact{background-color:#222;background-image:url(../img/map-image.png);background-repeat:no-repeat;background-position:center}section#contact .section-heading{color:#fff}section#contact .form-group{margin-bottom:25px}section#contact .form-group input,section#contact .form-group textarea{padding:20px}section#contact .form-group input.form-control{height:auto}section#contact .form-group textarea.form-control{height:236px}section#contact .form-control:focus{border-color:#fed136;box-shadow:none}section#contact ::-webkit-input-placeholder{font-weight:700;color:#eee;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}section#contact :-moz-placeholder{font-weight:700;color:#eee;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}section#contact ::-moz-placeholder{font-weight:700;color:#eee;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}section#contact :-ms-input-placeholder{font-weight:700;color:#eee;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}section#contact .text-danger{color:#e74c3c}footer{padding:25px 0;text-align:center}footer span.copyright{font-size:90%;line-height:40px;text-transform:none;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}footer ul.quicklinks{font-size:90%;line-height:40px;margin-bottom:0;text-transform:none;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}ul.social-buttons{margin-bottom:0}ul.social-buttons li a{font-size:20px;line-height:40px;display:block;width:40px;height:40px;-webkit-transition:all .3s;-moz-transition:all .3s;transition:all .3s;color:#fff;border-radius:100%;outline:0;background-color:#222}ul.social-buttons li a:active,ul.social-buttons li a:focus,ul.social-buttons li a:hover{background-color:#fed136}.text-primary{color:#fed136!important}.btn-primary{font-weight:700;color:#fff;border-color:#fed136;background-color:#fed136;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}.btn-primary.focus,.btn-primary:focus{color:#fff;border-color:#b48b01;background-color:#fec503}.btn-primary:hover{color:#fff;border-color:#f6bf01;background-color:#fec503}.btn-primary.active,.btn-primary:active,.open>.btn-primary.dropdown-toggle{color:#fff;border-color:#f6bf01;background-color:#fec503}.btn-primary.active.focus,.btn-primary.active:focus,.btn-primary.active:hover,.btn-primary:active.focus,.btn-primary:active:focus,.btn-primary:active:hover,.open>.btn-primary.dropdown-toggle.focus,.open>.btn-primary.dropdown-toggle:focus,.open>.btn-primary.dropdown-toggle:hover{color:#fff;border-color:#b48b01;background-color:#dcab01}.btn-primary.active,.btn-primary:active,.open>.btn-primary.dropdown-toggle{background-image:none}.btn-primary.disabled.focus,.btn-primary.disabled:focus,.btn-primary.disabled:hover,.btn-primary[disabled].focus,.btn-primary[disabled]:focus,.btn-primary[disabled]:hover,fieldset[disabled] .btn-primary.focus,fieldset[disabled] .btn-primary:focus,fieldset[disabled] .btn-primary:hover{border-color:#fed136;background-color:#fed136}.btn-primary .badge{color:#fed136;background-color:#fff}.btn-xl{font-size:18px;font-weight:700;padding:20px 40px;border-radius:3px;color:#fff;border-color:#fed136;background-color:#fed136;font-family:Montserrat,'Helvetica Neue',Helvetica,Arial,sans-serif;text-transform:uppercase}.btn-xl.focus,.btn-xl:focus{color:#fff;border-color:#b48b01;background-color:#fec503}.btn-xl:hover{color:#fff;border-color:#f6bf01;background-color:#fec503}.btn-xl.active,.btn-xl:active,.open>.btn-xl.dropdown-toggle{color:#fff;border-color:#f6bf01;background-color:#fec503}.btn-xl.active.focus,.btn-xl.active:focus,.btn-xl.active:hover,.btn-xl:active.focus,.btn-xl:active:focus,.btn-xl:active:hover,.open>.btn-xl.dropdown-toggle.focus,.open>.btn-xl.dropdown-toggle:focus,.open>.btn-xl.dropdown-toggle:hover{color:#fff;border-color:#b48b01;background-color:#dcab01}.btn-xl.active,.btn-xl:active,.open>.btn-xl.dropdown-toggle{background-image:none}.btn-xl.disabled.focus,.btn-xl.disabled:focus,.btn-xl.disabled:hover,.btn-xl[disabled].focus,.btn-xl[disabled]:focus,.btn-xl[disabled]:hover,fieldset[disabled] .btn-xl.focus,fieldset[disabled] .btn-xl:focus,fieldset[disabled] .btn-xl:hover{border-color:#fed136;background-color:#fed136}.btn-xl .badge{color:#fed136;background-color:#fff}
\ No newline at end of file
diff --git a/js/agency.min.js b/js/agency.min.js
index 608d362..f7a2ce3 100644
--- a/js/agency.min.js
+++ b/js/agency.min.js
@@ -1,5 +1,5 @@
 /*!
- * Start Bootstrap - Agency v4.0.0-beta (http://startbootstrap.com/template-overviews/agency)
+ * Start Bootstrap - Agency v4.0.0-beta (https://startbootstrap.com/template-overviews/agency)
  * Copyright 2013-2017 Start Bootstrap
  * Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap-agency/blob/master/LICENSE)
  */
diff --git a/package.json b/package.json
index aa95985..bf65539 100644
--- a/package.json
+++ b/package.json
@@ -1,44 +1,44 @@
 {
-  "title": "Agency",
-  "name": "startbootstrap-agency",
-  "version": "4.0.0-beta",
-  "description": "Agency is a one page HTML theme for Bootstrap.",
-  "keywords": [
-    "css",
-    "sass",
-    "html",
-    "responsive",
-    "theme",
-    "template"
-  ],
-  "homepage": "https://startbootstrap.com/template-overviews/agency",
-  "bugs": {
-    "url": "https://github.com/BlackrockDigital/startbootstrap-agency/issues",
-    "email": "feedback@startbootstrap.com"
-  },
-  "license": "MIT",
-  "author": "Start Bootstrap",
-  "contributors": [
-    "David Miller (http://davidmiller.io/)"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/BlackrockDigital/startbootstrap-agency.git"
-  },
-  "dependencies": {
-    "bootstrap": "^4.0.0-beta",
-    "font-awesome": "4.7.0",
-    "jquery": "^3.2.1",
-    "jquery.easing": "^1.4.1",
-    "popper.js": "^1.11.1"
-  },
-  "devDependencies": {
-    "browser-sync": "2.18.13",
-    "gulp": "^3.9.1",
-    "gulp-clean-css": "3.7.0",
-    "gulp-header": "1.8.9",
-    "gulp-rename": "^1.2.2",
-    "gulp-sass": "^3.1.0",
-    "gulp-uglify": "3.0.0"
-  }
-}
+    "title": "Agency",
+    "name": "startbootstrap-agency",
+    "version": "4.0.0-beta",
+    "description": "Agency is a one page HTML theme for Bootstrap.",
+    "keywords": [
+        "css",
+        "sass",
+        "html",
+        "responsive",
+        "theme",
+        "template"
+    ],
+    "homepage": "https://startbootstrap.com/template-overviews/agency",
+    "bugs": {
+        "url": "https://github.com/BlackrockDigital/startbootstrap-agency/issues",
+        "email": "feedback@startbootstrap.com"
+    },
+    "license": "MIT",
+    "author": "Start Bootstrap",
+    "contributors": [
+        "David Miller (http://davidmiller.io/)"
+    ],
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/BlackrockDigital/startbootstrap-agency.git"
+    },
+    "dependencies": {
+        "bootstrap": "^4.0.0-beta",
+        "font-awesome": "4.7.0",
+        "jquery": "^3.2.1",
+        "jquery.easing": "^1.4.1",
+        "popper.js": "1.12.3"
+    },
+    "devDependencies": {
+        "browser-sync": "2.18.13",
+        "gulp": "^3.9.1",
+        "gulp-clean-css": "3.7.0",
+        "gulp-header": "1.8.9",
+        "gulp-rename": "^1.2.2",
+        "gulp-sass": "^3.1.0",
+        "gulp-uglify": "3.0.0"
+    }
+}
\ No newline at end of file
diff --git a/vendor/popper/popper.js b/vendor/popper/popper.js
index 143d621..1e79ec9 100644
--- a/vendor/popper/popper.js
+++ b/vendor/popper/popper.js
@@ -1,6 +1,6 @@
 /**!
  * @fileOverview Kickass library to create and place poppers near their reference elements.
- * @version 1.11.1
+ * @version 1.12.3
  * @license
  * Copyright (c) 2016 Federico Zivolo and contributors
  *
@@ -347,7 +347,7 @@ var isIE10$1 = function () {
 };
 
 function getSize(axis, body, html, computedStyle) {
-  return Math.max(body['offset' + axis], html['client' + axis], html['offset' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
+  return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
 }
 
 function getWindowSizes() {
@@ -873,6 +873,7 @@ function update() {
   var data = {
     instance: this,
     styles: {},
+    arrowStyles: {},
     attributes: {},
     flipped: false,
     offsets: {}
@@ -1117,9 +1118,9 @@ function applyStyle(data) {
   // they will be set as HTML attributes of the element
   setAttributes(data.instance.popper, data.attributes);
 
-  // if the arrow style has been computed, apply the arrow style
-  if (data.offsets.arrow) {
-    setStyles(data.arrowElement, data.offsets.arrow);
+  // if arrowElement is defined and arrowStyles has some properties
+  if (data.arrowElement && Object.keys(data.arrowStyles).length) {
+    setStyles(data.arrowElement, data.arrowStyles);
   }
 
   return data;
@@ -1239,9 +1240,10 @@ function computeStyle(data, options) {
     'x-placement': data.placement
   };
 
-  // Update attributes and styles of `data`
+  // Update `data` attributes, styles and arrowStyles
   data.attributes = _extends({}, attributes, data.attributes);
   data.styles = _extends({}, styles, data.styles);
+  data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);
 
   return data;
 }
@@ -1314,13 +1316,15 @@ function arrow(data, options) {
   var isVertical = ['left', 'right'].indexOf(placement) !== -1;
 
   var len = isVertical ? 'height' : 'width';
-  var side = isVertical ? 'top' : 'left';
+  var sideCapitalized = isVertical ? 'Top' : 'Left';
+  var side = sideCapitalized.toLowerCase();
   var altSide = isVertical ? 'left' : 'top';
   var opSide = isVertical ? 'bottom' : 'right';
   var arrowElementSize = getOuterSizes(arrowElement)[len];
 
   //
-  // extends keepTogether behavior making sure the popper and its reference have enough pixels in conjuction
+  // extends keepTogether behavior making sure the popper and its
+  // reference have enough pixels in conjuction
   //
 
   // top/left side
@@ -1336,7 +1340,9 @@ function arrow(data, options) {
   var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
 
   // Compute the sideValue using the updated popper offsets
-  var sideValue = center - getClientRect(data.offsets.popper)[side];
+  // take popper margin in account because we don't have this info available
+  var popperMarginSide = getStyleComputedProperty(data.instance.popper, 'margin' + sideCapitalized).replace('px', '');
+  var sideValue = center - getClientRect(data.offsets.popper)[side] - popperMarginSide;
 
   // prevent arrowElement from being placed not contiguously to its popper
   sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
@@ -1858,7 +1864,7 @@ function inner(data) {
 
   var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
 
-  popper[isHoriz ? 'left' : 'top'] = reference[placement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
+  popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
 
   data.placement = getOppositePlacement(placement);
   data.offsets.popper = getClientRect(popper);
@@ -1936,6 +1942,9 @@ var modifiers = {
    * '10 - 5vh + 3%'
    * '-10px + 5vh, 5px - 6%'
    * ```
+   * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
+   * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
+   * > More on this [reading this issue](https://github.com/FezVrasta/popper.js/issues/373)
    *
    * @memberof modifiers
    * @inner
@@ -2198,6 +2207,7 @@ var modifiers = {
  * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
  * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
  * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
+ * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow, it expects the JavaScript nomenclature (eg. `marginBottom`)
  * @property {Object} data.boundaries Offsets of the popper boundaries
  * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
  * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
diff --git a/vendor/popper/popper.min.js b/vendor/popper/popper.min.js
index 95e9ef5..4553f65 100644
--- a/vendor/popper/popper.min.js
+++ b/vendor/popper/popper.min.js
@@ -1,5 +1,5 @@
 /*
  Copyright (C) Federico Zivolo 2017
  Distributed under the MIT License (license terms are at http://opensource.org/licenses/MIT).
- */(function(e,t){'object'==typeof exports&&'undefined'!=typeof module?module.exports=t():'function'==typeof define&&define.amd?define(t):e.Popper=t()})(this,function(){'use strict';function e(e){return e&&'[object Function]'==={}.toString.call(e)}function t(e,t){if(1!==e.nodeType)return[];var o=window.getComputedStyle(e,null);return t?o[t]:o}function o(e){return'HTML'===e.nodeName?e:e.parentNode||e.host}function n(e){if(!e||-1!==['HTML','BODY','#document'].indexOf(e.nodeName))return window.document.body;var i=t(e),r=i.overflow,p=i.overflowX,s=i.overflowY;return /(auto|scroll)/.test(r+s+p)?e:n(o(e))}function r(e){var o=e&&e.offsetParent,i=o&&o.nodeName;return i&&'BODY'!==i&&'HTML'!==i?-1!==['TD','TABLE'].indexOf(o.nodeName)&&'static'===t(o,'position')?r(o):o:window.document.documentElement}function p(e){var t=e.nodeName;return'BODY'!==t&&('HTML'===t||r(e.firstElementChild)===e)}function s(e){return null===e.parentNode?e:s(e.parentNode)}function 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i=ie(),r='HTML'===o.nodeName,p=g(e),s=g(o),d=n(e),a=t(o),l=+a.borderTopWidth.split('px')[0],m=+a.borderLeftWidth.split('px')[0],h=c({top:p.top-s.top-l,left:p.left-s.left-m,width:p.width,height:p.height});if(h.marginTop=0,h.marginLeft=0,!i&&r){var u=+a.marginTop.split('px')[0],b=+a.marginLeft.split('px')[0];h.top-=l-u,h.bottom-=l-u,h.left-=m-b,h.right-=m-b,h.marginTop=u,h.marginLeft=b}return(i?o.contains(d):o===d&&'BODY'!==d.nodeName)&&(h=f(h,o)),h}function b(e){var t=window.document.documentElement,o=u(e,t),i=_(t.clientWidth,window.innerWidth||0),n=_(t.clientHeight,window.innerHeight||0),r=a(t),p=a(t,'left'),s={top:r-o.top+o.marginTop,left:p-o.left+o.marginLeft,width:i,height:n};return c(s)}function y(e){var i=e.nodeName;return'BODY'===i||'HTML'===i?!1:'fixed'===t(e,'position')||y(o(e))}function w(e,t,i,r){var p={top:0,left:0},s=d(e,t);if('viewport'===r)p=b(s);else{var a;'scrollParent'===r?(a=n(o(e)),'BODY'===a.nodeName&&(a=window.document.documentElement)):'window'===r?a=window.document.documentElement:a=r;var f=u(a,s);if('HTML'===a.nodeName&&!y(s)){var l=h(),m=l.height,c=l.width;p.top+=f.top-f.marginTop,p.bottom=m+f.top,p.left+=f.left-f.marginLeft,p.right=c+f.left}else p=f}return p.left+=i,p.top+=i,p.right-=i,p.bottom-=i,p}function v(e){var t=e.width,o=e.height;return t*o}function E(e,t,o,i,n){var r=5<arguments.length&&void 0!==arguments[5]?arguments[5]:0;if(-1===e.indexOf('auto'))return e;var p=w(o,i,r,n),s={top:{width:p.width,height:t.top-p.top},right:{width:p.right-t.right,height:p.height},bottom:{width:p.width,height:p.bottom-t.bottom},left:{width:t.left-p.left,height:p.height}},d=Object.keys(s).map(function(e){return se({key:e},s[e],{area:v(s[e])})}).sort(function(e,t){return t.area-e.area}),a=d.filter(function(e){var t=e.width,i=e.height;return t>=o.clientWidth&&i>=o.clientHeight}),f=0<a.length?a[0].key:d[0].key,l=e.split('-')[1];return f+(l?'-'+l:'')}function x(e,t,o){var i=d(t,o);return u(o,i)}function O(e){var t=window.getComputedStyle(e),o=parseFloat(t.marginTop)+parseFloat(t.marginBottom),i=parseFloat(t.marginLeft)+parseFloat(t.marginRight),n={width:e.offsetWidth+i,height:e.offsetHeight+o};return n}function L(e){var t={left:'right',right:'left',bottom:'top',top:'bottom'};return e.replace(/left|right|bottom|top/g,function(e){return t[e]})}function S(e,t,o){o=o.split('-')[0];var i=O(e),n={width:i.width,height:i.height},r=-1!==['right','left'].indexOf(o),p=r?'top':'left',s=r?'left':'top',d=r?'height':'width',a=r?'width':'height';return n[p]=t[p]+t[d]/2-i[d]/2,n[s]=o===s?t[s]-i[a]:t[L(s)],n}function T(e,t){return Array.prototype.find?e.find(t):e.filter(t)[0]}function C(e,t,o){if(Array.prototype.findIndex)return e.findIndex(function(e){return e[t]===o});var i=T(e,function(e){return e[t]===o});return e.indexOf(i)}function N(t,o,i){var n=void 0===i?t:t.slice(0,C(t,'name',i));return 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e.order-t.order}),this.modifiers.forEach(function(t){t.enabled&&e(t.onLoad)&&t.onLoad(n.reference,n.popper,n.options,t,n.state)}),this.update();var p=this.options.eventsEnabled;p&&this.enableEventListeners(),this.state.eventsEnabled=p}return re(t,[{key:'update',value:function(){return k.call(this)}},{key:'destroy',value:function(){return D.call(this)}},{key:'enableEventListeners',value:function(){return A.call(this)}},{key:'disableEventListeners',value:function(){return I.call(this)}}]),t}();return le.Utils=('undefined'==typeof window?global:window).PopperUtils,le.placements=de,le.Defaults={placement:'bottom',eventsEnabled:!0,removeOnDestroy:!1,onCreate:function(){},onUpdate:function(){},modifiers:{shift:{order:100,enabled:!0,fn:function(e){var t=e.placement,o=t.split('-')[0],i=t.split('-')[1];if(i){var n=e.offsets,r=n.reference,p=n.popper,s=-1!==['bottom','top'].indexOf(o),d=s?'left':'top',a=s?'width':'height',f={start:pe({},d,r[d]),end:pe({},d,r[d]+r[a]-p[a])};e.offsets.popper=se({},p,f[i])}return e}},offset:{order:200,enabled:!0,fn:function(e,t){var o,i=t.offset,n=e.placement,r=e.offsets,p=r.popper,s=r.reference,d=n.split('-')[0];return o=R(+i)?[+i,0]:G(i,p,s,d),'left'===d?(p.top+=o[0],p.left-=o[1]):'right'===d?(p.top+=o[0],p.left+=o[1]):'top'===d?(p.left+=o[0],p.top-=o[1]):'bottom'===d&&(p.left+=o[0],p.top+=o[1]),e.popper=p,e},offset:0},preventOverflow:{order:300,enabled:!0,fn:function(e,t){var o=t.boundariesElement||r(e.instance.popper);e.instance.reference===o&&(o=r(o));var i=w(e.instance.popper,e.instance.reference,t.padding,o);t.boundaries=i;var n=t.priority,p=e.offsets.popper,s={primary:function(e){var o=p[e];return p[e]<i[e]&&!t.escapeWithReference&&(o=_(p[e],i[e])),pe({},e,o)},secondary:function(e){var o='right'===e?'left':'top',n=p[o];return p[e]>i[e]&&!t.escapeWithReference&&(n=z(p[o],i[e]-('right'===e?p.width:p.height))),pe({},o,n)}};return n.forEach(function(e){var t=-1===['left','top'].indexOf(e)?'secondary':'primary';p=se({},p,s[t](e))}),e.offsets.popper=p,e},priority:['left','right','top','bottom'],padding:5,boundariesElement:'scrollParent'},keepTogether:{order:400,enabled:!0,fn:function(e){var t=e.offsets,o=t.popper,i=t.reference,n=e.placement.split('-')[0],r=V,p=-1!==['top','bottom'].indexOf(n),s=p?'right':'bottom',d=p?'left':'top',a=p?'width':'height';return o[s]<r(i[d])&&(e.offsets.popper[d]=r(i[d])-o[a]),o[d]>r(i[s])&&(e.offsets.popper[d]=r(i[s])),e}},arrow:{order:500,enabled:!0,fn:function(e,t){if(!F(e.instance.modifiers,'arrow','keepTogether'))return e;var o=t.element;if('string'==typeof o){if(o=e.instance.popper.querySelector(o),!o)return e;}else if(!e.instance.popper.contains(o))return console.warn('WARNING: `arrow.element` must be child of its popper element!'),e;var i=e.placement.split('-')[0],n=e.offsets,r=n.popper,p=n.reference,s=-1!==['left','right'].indexOf(i),d=s?'height':'width',a=s?'top':'left',f=s?'left':'top',l=s?'bottom':'right',m=O(o)[d];p[l]-m<r[a]&&(e.offsets.popper[a]-=r[a]-(p[l]-m)),p[a]+m>r[l]&&(e.offsets.popper[a]+=p[a]+m-r[l]);var h=p[a]+p[d]/2-m/2,g=h-c(e.offsets.popper)[a];return g=_(z(r[d]-m,g),0),e.arrowElement=o,e.offsets.arrow={},e.offsets.arrow[a]=Math.round(g),e.offsets.arrow[f]='',e},element:'[x-arrow]'},flip:{order:600,enabled:!0,fn:function(e,t){if(W(e.instance.modifiers,'inner'))return e;if(e.flipped&&e.placement===e.originalPlacement)return e;var o=w(e.instance.popper,e.instance.reference,t.padding,t.boundariesElement),i=e.placement.split('-')[0],n=L(i),r=e.placement.split('-')[1]||'',p=[];switch(t.behavior){case fe.FLIP:p=[i,n];break;case fe.CLOCKWISE:p=K(i);break;case fe.COUNTERCLOCKWISE:p=K(i,!0);break;default:p=t.behavior;}return p.forEach(function(s,d){if(i!==s||p.length===d+1)return 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fe.FLIP:p=[i,n];break;case fe.CLOCKWISE:p=K(i);break;case fe.COUNTERCLOCKWISE:p=K(i,!0);break;default:p=t.behavior;}return p.forEach(function(s,d){if(i!==s||p.length===d+1)return e;i=e.placement.split('-')[0],n=L(i);var a=e.offsets.popper,l=e.offsets.reference,f=_,m='left'===i&&f(a.right)>f(l.left)||'right'===i&&f(a.left)<f(l.right)||'top'===i&&f(a.bottom)>f(l.top)||'bottom'===i&&f(a.top)<f(l.bottom),c=f(a.left)<f(o.left),h=f(a.right)>f(o.right),g=f(a.top)<f(o.top),u=f(a.bottom)>f(o.bottom),b='left'===i&&c||'right'===i&&h||'top'===i&&g||'bottom'===i&&u,y=-1!==['top','bottom'].indexOf(i),w=!!t.flipVariations&&(y&&'start'===r&&c||y&&'end'===r&&h||!y&&'start'===r&&g||!y&&'end'===r&&u);(m||b||w)&&(e.flipped=!0,(m||b)&&(i=p[d+1]),w&&(r=j(r)),e.placement=i+(r?'-'+r:''),e.offsets.popper=de({},e.offsets.popper,S(e.instance.popper,e.offsets.reference,e.placement)),e=N(e.instance.modifiers,e,'flip'))}),e},behavior:'flip',padding:5,boundariesElement:'viewport'},inner:{order:700,enabled:!1,fn:function(e){var t=e.placement,o=t.split('-')[0],i=e.offsets,n=i.popper,r=i.reference,p=-1!==['left','right'].indexOf(o),s=-1===['top','left'].indexOf(o);return n[p?'left':'top']=r[o]-(s?n[p?'width':'height']:0),e.placement=L(t),e.offsets.popper=h(n),e}},hide:{order:800,enabled:!0,fn:function(e){if(!F(e.instance.modifiers,'hide','preventOverflow'))return e;var t=e.offsets.reference,o=T(e.instance.modifiers,function(e){return'preventOverflow'===e.name}).boundaries;if(t.bottom<o.top||t.left>o.right||t.top>o.bottom||t.right<o.left){if(!0===e.hide)return e;e.hide=!0,e.attributes['x-out-of-boundaries']=''}else{if(!1===e.hide)return e;e.hide=!1,e.attributes['x-out-of-boundaries']=!1}return e}},computeStyle:{order:850,enabled:!0,fn:function(e,t){var o=t.x,i=t.y,n=e.offsets.popper,p=T(e.instance.modifiers,function(e){return'applyStyle'===e.name}).gpuAcceleration;void 0!==p&&console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');var s,d,a=void 0===p?t.gpuAcceleration:p,l=r(e.instance.popper),f=g(l),m={position:n.position},c={left:_(n.left),top:_(n.top),bottom:_(n.bottom),right:_(n.right)},h='bottom'===o?'top':'bottom',u='right'===i?'left':'right',b=B('transform');if(d='bottom'==h?-f.height+c.bottom:c.top,s='right'==u?-f.width+c.right:c.left,a&&b)m[b]='translate3d('+s+'px, '+d+'px, 0)',m[h]=0,m[u]=0,m.willChange='transform';else{var y='bottom'==h?-1:1,w='right'==u?-1:1;m[h]=d*y,m[u]=s*w,m.willChange=h+', '+u}var E={"x-placement":e.placement};return e.attributes=de({},E,e.attributes),e.styles=de({},m,e.styles),e.arrowStyles=de({},e.offsets.arrow,e.arrowStyles),e},gpuAcceleration:!0,x:'bottom',y:'right'},applyStyle:{order:900,enabled:!0,fn:function(e){return U(e.instance.popper,e.styles),Y(e.instance.popper,e.attributes),e.arrowElement&&Object.keys(e.arrowStyles).length&&U(e.arrowElement,e.arrowStyles),e},onLoad:function(e,t,o,i,n){var 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