/* Grouping content
   ========================================================================== */
/**
 * Add the correct display in IE 9-.
 * 1. Add the correct display in IE.
 */
 figcaption,
 figure,
 main {
   /* 1 */
   display: block;
 }
 
 /**
  * Add the correct margin in IE 8.
  */
 figure {
   margin: 1em 40px;
 }
 
 /**
  * 1. Add the correct box sizing in Firefox.
  * 2. Show the overflow in Edge and IE.
  */
 hr {
   box-sizing: content-box;
   /* 1 */
   height: 0;
   /* 1 */
   overflow: visible;
   /* 2 */
 }
 
 /**
  * 1. Correct the inheritance and scaling of font size in all browsers.
  * 2. Correct the odd `em` font sizing in all browsers.
  */
 pre {
   font-family: monospace, monospace;
   /* 1 */
   font-size: 1em;
   /* 2 */
 }
 
 /* Text-level semantics
    ========================================================================== */
 /**
  * 1. Remove the gray background on active links in IE 10.
  * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
  */
 a {
   background-color: transparent;
   /* 1 */
   -webkit-text-decoration-skip: objects;
   /* 2 */
 }
 
 /**
  * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
  */
 abbr[title] {
   border-bottom: none;
   /* 1 */
   text-decoration: underline;
   /* 2 */
   text-decoration: underline dotted;
   /* 2 */
 }
 
 /**
  * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
  */
 b,
 strong {
   font-weight: inherit;
 }
 
 /**
  * Add the correct font weight in Chrome, Edge, and Safari.
  */
 b,
 strong {
   font-weight: bolder;
 }
 
 /**
  * 1. Correct the inheritance and scaling of font size in all browsers.
  * 2. Correct the odd `em` font sizing in all browsers.
  */
 code,
 kbd,
 samp {
   font-family: monospace, monospace;
   /* 1 */
   font-size: 1em;
   /* 2 */
 }
 
 /**
  * Add the correct font style in Android 4.3-.
  */
 dfn {
   font-style: italic;
 }
 
 /**
  * Add the correct background and color in IE 9-.
  */
 mark {
   background-color: #ff0;
   color: #000;
 }
 
 /**
  * Add the correct font size in all browsers.
  */
 small {
   font-size: 80%;
 }
 
 /**
  * Prevent `sub` and `sup` elements from affecting the line height in
  * all browsers.
  */
 sub,
 sup {
   font-size: 75%;
   line-height: 0;
   position: relative;
   vertical-align: baseline;
 }
 
 sub {
   bottom: -0.25em;
 }
 
 sup {
   top: -0.5em;
 }
 
 /* Embedded content
    ========================================================================== */
 /**
  * Add the correct display in IE 9-.
  */
 audio,
 video {
   display: inline-block;
 }
 
 /**
  * Add the correct display in iOS 4-7.
  */
 audio:not([controls]) {
   display: none;
   height: 0;
 }
 
 /**
  * Remove the border on images inside links in IE 10-.
  */
 img {
   border-style: none;
 }
 
 /**
  * Hide the overflow in IE.
  */
 svg:not(:root) {
   overflow: hidden;
 }
 
 /* Forms
    ========================================================================== */
 /**
  * 1. Change the font styles in all browsers (opinionated).
  * 2. Remove the margin in Firefox and Safari.
  */
 button,
 input,
 optgroup,
 select,
 textarea {
   font-family: sans-serif;
   /* 1 */
   font-size: 100%;
   /* 1 */
   line-height: 1.15;
   /* 1 */
   margin: 0;
   /* 2 */
 }
 
 /**
  * Show the overflow in IE.
  * 1. Show the overflow in Edge.
  */
 button,
 input {
   /* 1 */
   overflow: visible;
 }
 
 /**
  * Remove the inheritance of text transform in Edge, Firefox, and IE.
  * 1. Remove the inheritance of text transform in Firefox.
  */
 button,
 select {
   /* 1 */
   text-transform: none;
 }
 
 /**
  * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
  *    controls in Android 4.
  * 2. Correct the inability to style clickable types in iOS and Safari.
  */
 button,
 html [type="button"],
 [type="reset"],
 [type="submit"] {
   -webkit-appearance: button;
   /* 2 */
 }
 
 /**
  * Remove the inner border and padding in Firefox.
  */
 button::-moz-focus-inner,
 [type="button"]::-moz-focus-inner,
 [type="reset"]::-moz-focus-inner,
 [type="submit"]::-moz-focus-inner {
   border-style: none;
   padding: 0;
 }
 
 /**
  * Restore the focus styles unset by the previous rule.
  */
 button:-moz-focusring,
 [type="button"]:-moz-focusring,
 [type="reset"]:-moz-focusring,
 [type="submit"]:-moz-focusring {
   outline: 1px dotted ButtonText;
 }
 
 /**
  * Correct the padding in Firefox.
  */
 fieldset {
   padding: 0.35em 0.75em 0.625em;
 }
 
 /**
  * 1. Correct the text wrapping in Edge and IE.
  * 2. Correct the color inheritance from `fieldset` elements in IE.
  * 3. Remove the padding so developers are not caught out when they zero out
  *    `fieldset` elements in all browsers.
  */
 legend {
   box-sizing: border-box;
   /* 1 */
   color: inherit;
   /* 2 */
   display: table;
   /* 1 */
   max-width: 100%;
   /* 1 */
   padding: 0;
   /* 3 */
   white-space: normal;
   /* 1 */
 }
 
 /**
  * 1. Add the correct display in IE 9-.
  * 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
  */
 progress {
   display: inline-block;
   /* 1 */
   vertical-align: baseline;
   /* 2 */
 }
 
 /**
  * Remove the default vertical scrollbar in IE.
  */
 textarea {
   overflow: auto;
 }
 
 /**
  * 1. Add the correct box sizing in IE 10-.
  * 2. Remove the padding in IE 10-.
  */
 [type="checkbox"],
 [type="radio"] {
   box-sizing: border-box;
   /* 1 */
   padding: 0;
   /* 2 */
 }
 
 /**
  * Correct the cursor style of increment and decrement buttons in Chrome.
  */
 [type="number"]::-webkit-inner-spin-button,
 [type="number"]::-webkit-outer-spin-button {
   height: auto;
 }
 
 /**
  * 1. Correct the odd appearance in Chrome and Safari.
  * 2. Correct the outline style in Safari.
  */
 [type="search"] {
   -webkit-appearance: textfield;
   /* 1 */
   outline-offset: -2px;
   /* 2 */
 }
 
 /**
  * Remove the inner padding and cancel buttons in Chrome and Safari on macOS.
  */
 [type="search"]::-webkit-search-cancel-button,
 [type="search"]::-webkit-search-decoration {
   -webkit-appearance: none;
 }
 
 /**
  * 1. Correct the inability to style clickable types in iOS and Safari.
  * 2. Change font properties to `inherit` in Safari.
  */
 ::-webkit-file-upload-button {
   -webkit-appearance: button;
   /* 1 */
   font: inherit;
   /* 2 */
 }
 
 /* Interactive
    ========================================================================== */
 /*
  * Add the correct display in IE 9-.
  * 1. Add the correct display in Edge, IE, and Firefox.
  */
 details,
 menu {
   display: block;
 }
 
 /*
  * Add the correct display in all browsers.
  */
 summary {
   display: list-item;
 }
 
 /* Scripting
    ========================================================================== */
 /**
  * Add the correct display in IE 9-.
  */
 canvas {
   display: inline-block;
 }
 
 /**
  * Add the correct display in IE.
  */
 template {
   display: none;
 }
 
 /* Hidden
    ========================================================================== */
 /**
  * Add the correct display in IE 10-.
  */
 [hidden] {
   display: none;
 }
 
 *,
 *:before,
 *:after {
   box-sizing: border-box;
 }
 
 
 
 .container {
   width: 100%;
   max-width: 100%;
   margin-right: auto;
   margin-left: auto;
   padding-left: 15px;
   padding-right: 15px;
 }
 
 .container:before, .container:after {
   content: " ";
   display: table;
 }
 
 .container:after {
   clear: both;
 }
 
 .row {
   display: -webkit-box;
   display: -ms-flexbox;
   display: flex;
   -ms-flex-wrap: wrap;
       flex-wrap: wrap;
   margin-right: px;
   margin-left: px;
 }
 
 .col-sm-4 {
   position: relative;
   width: 100%;
   padding-left: 15px;
   padding-right: 15px;
   min-height: 1px;
 }
 
 
 
 .img-fluid {
   max-width: 100%;
   height: auto;
   vertical-align: middle;
   border-style: none;
 }
 
 .header {
   position: fixed;
   top: 0;
   z-index: 100;
   width: 100%;
   padding: 15px 0;
   color: #fff;
   background-color: #1976D2;
   box-shadow: 0 0 6px 6px rgba(0, 0, 0, 0.1);
 }
 
 .logo-text {
   margin: 0;
 }
 
 
 
 
 
 
 .demo {
   margin-top: 10px;
   margin-bottom: 10px;
 }
 
 .demo--intro {
   border-bottom: 1px solid #ddd;
 }
 
 .btn {
   display: inline-block;
   text-align: center;
   vertical-align: middle;
   cursor: pointer;
   border: 1px solid #bbb;
   padding: 4px 12px 6px 12px;
   font-size: 18px;
   background-color: #fff;
   border-radius: 4px;
   transition: background-color .3s, color .3s;
 }
 
 .btn:hover, .btn:active {
   background-color: #f3f3f3;
 }
 
 .btn-white {
   color: #fff;
   border-color: #fff;
   background-color: transparent;
 }
 
 .install .btn {
   margin-right: 15px;
   margin-bottom: 15px;
 }
 
 pre {
   display: block;
   padding: 10px 15px;
   margin: 0 0 20px 0;
   overflow: auto;
   font-family: 'Cutive Mono', monospace;
   font-size: 14px;
   word-break: break-all;
   word-wrap: break-word;
   background-color: #f3f3f3;
   border: 1px solid #bbb;
   border-radius: 4px;
 }