@font-face {
	font-family: 'codropsicons';
	font-weight: normal;
	font-style: normal;
	src: url('../fonts/codropsicons/codropsicons.eot');
	src: url('../fonts/codropsicons/codropsicons.eot?#iefix') format('embedded-opentype'), url('../fonts/codropsicons/codropsicons.woff') format('woff'), url('../fonts/codropsicons/codropsicons.ttf') format('truetype'), url('../fonts/codropsicons/codropsicons.svg#codropsicons') format('svg');
}

*,
*:after,
*:before {
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
}

.clearfix:before,
.clearfix:after {
	content: '';
	display: table;
}

.clearfix:after {
	clear: both;
}



a {
	text-decoration: none;
	color: #e7e6e6;/*菜单颜色*/
	outline: none;
}

a:hover,
a:focus {
	color: #fff;
}


/* Content */

.content {
	text-align: center;
}

.content--alt {
	background: #373752;
	padding: 2em 0 4em;
}

.content__title {
	font-size: 1.75em;
	font-weight: normal;
	margin: 3.5em 0 0 0;
	padding: 0 0 1em;
}

.content__title span {
	display: block;
	font-size: 0.625em;
	color: #B0B0C8;
}

.info {
	padding: 2em 1em;
	max-width: 800px;
	margin: 0 auto;
	font-size: 1.5em;
}

.info-img {
	margin: 1em auto 0;
	display: block;
}

/* Device styles */

.device {
	position: relative;
	overflow: hidden;
	width: 40em;
	height: 35em;
	margin: 0 auto;
	background-size: 100%;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	-webkit-touch-callout: none;
	-khtml-user-select: none;
}

.device__screen {
    width:170px;/*控制手机下拉菜单宽度*/
	height:440px;
	overflow: hidden;
	margin: 3em 3.75% 0;/*控制手机菜单的整体位置*/
	text-align: left;
	border-radius: 4px 4px 0 0;
    box-shadow: inset 0 6.2em 0 rgba(0, 0, 0, 0.1);

}

.device__screen {
	background: #red;
	
}   

.device--alt .device__screen {
	background: #4ECE77;

}

.dummy__item {
	height: 2.5em;
	margin: 10px 1.25em;/*控制菜单之间的间隔*/
font-size: 15px;/*栏目菜单字体大小*/
font-color:#663333;

padding:3px;
	-webkit-transition: -webkit-transform 0.5s;
	transition: transform 0.5s;
	-webkit-transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
	transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
}

.dummy__item a:hover,ul>a:active
  {
  background-color:#cdcccc;/*鼠标放上去时候的颜色*/
  border:#cccccc 10px solid;
  border-radius:10px;
  }
  
.dummy__item {
	-webkit-transform: translate3d(-100%, 0, 0) translate3d(-2em, 0, 0) scale3d(0.5, 1, 1);
	transform: translate3d(-100%, 0, 0) translate3d(-2em, 0, 0) scale3d(0.5, 1, 1);
	-webkit-transform-origin: 100% 50%;
	transform-origin: 100% 50%;

}

.device--alt .dummy__item {
	-webkit-transform: translate3d(0, 260px, 0) scale3d(1, 0.2, 1);
	transform: translate3d(0, 260px, 0) scale3d(1, 0.2, 1);
}

.dummy--active .dummy__item {
	-webkit-transition-timing-function: cubic-bezier(0.56, 1.19, 0.2, 1.05);
	transition-timing-function: cubic-bezier(0.56, 1.19, 0.2, 1.05);
	-webkit-transform: translate3d(0, 0, 0);
	transform: translate3d(0, 0, 0);
}

.dummy__item:nth-child(4),
.dummy--active .dummy__item:first-child {
	-webkit-transition-delay: 0.05s;
	transition-delay: 0.05s;
}

.dummy__item:nth-child(3),
.dummy--active .dummy__item:nth-child(2) {
	-webkit-transition-delay: 0.1s;
	transition-delay: 0.1s;
}

.dummy__item:nth-child(2),
.dummy--active .dummy__item:nth-child(3) {
	-webkit-transition-delay: 0.15s;
	transition-delay: 0.15s;
}

.dummy__item:first-child,
.dummy--active .dummy__item:nth-child(4) {
	-webkit-transition-delay: 0.2s;
	transition-delay: 0.2s;
}

/* Related demos */

.content--related {
	font-weight: bold;
	padding: 4em 1em 2em;
	text-align: center;
	color: #76768E;
	background: #373752;
}

.content--related h3 {
	margin: 0 0 7em;
}

.media-item {
	display: inline-block;
	padding: 1em;
	vertical-align: top;
	-webkit-transition: color 0.3s;
	transition: color 0.3s;
}

.media-item__img {
	max-width: 100%;
	opacity: 0.3;
	-webkit-transition: opacity 0.3s;
	transition: opacity 0.3s;
}

.media-item:hover .media-item__img,
.media-item:focus .media-item__img {
	opacity: 1;
}

.media-item__title {
	font-size: 1em;
	margin: 0;
	padding: 0.5em;
}

@media screen and (max-width: 50em) {
	.device {
		width: 100%;
		height: auto;
		background-image: none;
	}
	.device__screen {
		margin: 0;
		border-radius: 0;
	}
}