body{
  font-family: 'Roboto', sans-serif;
  font-style: normal;
  font-weight: 300;
  font-smoothing: antialiased;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
  font-size: 15px;
  background: #eee;
}
.intro{
   background: #fff;
   padding: 60px 30px;
   color: #333;
   margin-bottom: 15px;
   line-height: 1.5;
   text-align: center;
}
.intro h1 {
   font-size: 18pt;
   padding-bottom: 15px;

}
.intro p{
   font-size: 14px;
}

.action{
   text-align: center;
   display: block;
   margin-top: 20px;
}

a.btn {
  text-decoration: none;
  color: #666;
   border: 2px solid #666;
   padding: 10px 15px;
   display: inline-block;
   margin-left: 5px;
}
a.btn:hover{
   background: #666;
   color: #fff;
    transition: .3s;
-webkit-transition: .3s;
}
.btn:before{
  font-family: FontAwesome;
  font-weight: normal;
  margin-right: 10px;
}
.github:before{content: "\f09b"}
.down:before{content: "\f019"}
.back:before{content:"\f112"}
.credit{
    background: #fff;
    padding: 12px;
    font-size: 9pt;
    text-align: center;
    color: #333;
    margin-top: 40px;

}
.credit span:before{
   font-family: FontAwesome;
   color: #e41b17;
   content: "\f004";


}
.credit a{
   color: #333;
   text-decoration: none;
}
.credit a:hover{
   color: #1DBF73; 
}
.credit a:hover:after{
    font-family: FontAwesome;
    content: "\f08e";
    font-size: 9pt;
    position: absolute;
    margin: 3px;
}
main{
  background: #fff;
  padding: 20px;
  
}

article li{
   color: #444;
   font-size: 15px;
   margin-left: 33px;
   line-height: 1.5;
   padding: 5px;
}
article h1,
article h2,
article h3,
article h4,
article p{
   padding: 14px;
   color: #333;
}
article p{
   font-size: 15px;
    line-height: 1.5;
}
 
@media only screen and (min-width: 720px){
    main{
      max-width: 720px;
      margin-left: auto;
      margin-right: auto; 
      padding: 24px;
    }


}

.set-overlayer,
.set-glass,
.set-sticky {
	cursor: pointer;
	height: 45px;
	line-height: 45px;
	padding: 0 15px;
	color: #333;
	font-size: 16px;
}
.set-overlayer:after,
.set-glass:after,
.to-active:after,
.set-sticky:after {
	font-family: FontAwesome;
	font-size: 18pt;
	position: relative;
	float: right;
}
.set-overlayer:after,
.set-glass:after,
.set-sticky:after {
	content: "\f204";
	transition: .6s;
}

.to-active:after {
	content: "\f205";
	color: #008080;
	transition: .6s;
}
.set-overlayer,
.set-glass,
.set-sticky,
.source,
.theme-tray {
	margin: 10px;
	background: #f2f2f2;
	border-radius: 5px;
	border: 2px solid #f1f1f1;
	box-sizing: border-box;
}
/* Syntax Highlighter*/

pre.prettyprint {
	padding: 15px !important;
   margin: 10px;
	border: 0 !important;
  background: #f2f2f2;
  overflow: auto;
}

.source {
	white-space: pre;
	overflow: auto;
	max-height: 400px;
}
code{
    border:1px solid #ddd;
    padding: 2px;
    border-radius: 2px;
}
/* cyrillic-ext */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu72xKOzY.woff2) format('woff2');
  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
/* cyrillic */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu5mxKOzY.woff2) format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
/* greek-ext */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu7mxKOzY.woff2) format('woff2');
  unicode-range: U+1F00-1FFF;
}
/* greek */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4WxKOzY.woff2) format('woff2');
  unicode-range: U+0370-03FF;
}
/* vietnamese */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu7WxKOzY.woff2) format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu7GxKOzY.woff2) format('woff2');
  unicode-range: U+0100-02AF, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxK.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}