div {
	margin-left:50px;
	margin-top:50px;
}
.top {
	width:0;
	height:0;
	border-bottom:2em solid #000;
	border-right:1.8em solid transparent;
	border-left:1.8em solid transparent;
}
.bottom {
	width:0;
	height:0;
	border-top:2em solid #000;
	border-right:1.8em solid transparent;
	border-left:1.8em solid transparent;
}
.left {
	width:0;
	height:0;
	border-left:2em solid #000;
	border-bottom:1.8em solid transparent;
	border-top:1.8em solid transparent;
}
.right {
	width:0;
	height:0;
	border-right:2em solid #000;
	border-bottom:1.8em solid transparent;
	border-top:1.8em solid transparent;
}
.bottomLeft {
	width:0;
	height:0;
	border-width:2em 1em;
	border-style:solid;
	border-color:transparent transparent #000 #000;
}
.bottomLeftRotate {
	width:0;
	height:0;
	border-width:2em 1em;
	border-style:solid;
	border-color:transparent transparent #000 #000;
	transform:rotate(60deg);
}
.up {
	box-sizing:border-box;
	position:relative;
	width:0;
	height:0;
	border-right:.9em solid transparent;
	border-bottom:.9em solid #000;
	border-left:.9em solid transparent;
}
.up:after {
	content:"";
	position:absolute;
	left:50%;
	top:.7em;
	margin-left:-.45em;
	/*宽度的一半，结合 left:50%;
	使用*/
				width:.9em;
	height:1.3em;
	background-color:#000;
}
.up_right {
	box-sizing:border-box;
	position:relative;
	width:1.3em;
	height:.9em;
	background-color:#000;
}
.up_right:after {
	content:"";
	position:absolute;
	top:50%;
	left:1.1em;
	margin-top:-.9em;
	width:0;
	height:0;
	border-top:.9em solid transparent;
	border-bottom:.9em solid transparent;
	border-left:.9em solid #000;
}
.up_bottom {
	box-sizing:border-box;
	position:relative;
	width:.9em;
	height:1.3em;
	background-color:#000;
}
.up_bottom:after {
	content:"";
	position:absolute;
	left:50%;
	top:1.1em;
	margin-left:-.9em;
	width:0;
	height:0;
	border-right:.9em solid transparent;
	border-top:.9em solid #000;
	border-left:.9em solid transparent;
}
.up_left {
	box-sizing:border-box;
	position:relative;
	width:0;
	height:0;
	border-top:.9em solid transparent;
	border-right:.9em solid #000;
	border-bottom:.9em solid transparent;
}
.up_left:after {
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	/*在绝对定位中，top:0;
	bottom:0;
	margin:auto;
	结合使用能竖直居中*/
				left:.7em;
	margin:auto;
	width:1.3em;
	height:.9em;
	background-color:#000;
}
.true {
	display:inline-block;
	width:20px;
	height:15px;
	background:black;
	line-height:0;
	font-size:0;
	vertical-align:middle;
	-webkit-transform:rotate(45deg);
}
.true:after {
	content:'/';
	display:block;
	width:50px;
	height:15px;
	background:black;
	-webkit-transform:rotate(-90deg) translateY(-5%) translateX(35%);
}
.true_one {
	position:relative;
	width:1.2em;
	height:.3em;
	background-color:#000;
	transform:rotate(60deg);
	transform-origin:right center;
	border-radius:.15em;
}
.true_one:after {
	content:"";
	position:absolute;
	top:.1em;
	left:-.85em;
	width:2em;
	height:.3em;
	background-color:#000;
	transform:rotate(60deg);
	transform-origin:right center;
	border-radius:.15em;
}
.false {
	position:relative;
	width:2em;
	height:.3em;
	background-color:#000;
	transform:rotate(45deg);
	border-radius:.15em;
}
.false:after {
	content:"";
	position:absolute;
	width:2em;
	height:.3em;
	background-color:#000;
	transform:rotate(90deg);
	border-radius:.15em;
}
.menu {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	background-color:#000;
	border-radius:.3em;
}
.menu:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:1.2em;
	height:.15em;
	background-color:#fff;
}
.menu:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:1.2em;
	height:.9em;
	border-width:.15em;
	border-style:solid none;
	border-color:#fff;
}
.menu2 {
	box-sizing:border-box;
	position:relative;
	width:.5em;
	height:.5em;
	background-color:#000;
	border-radius:50%;
	cursor:pointer;
}
.menu2:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	left:-.75em;
	width:.5em;
	height:.5em;
	background-color:#000;
	border-radius:50%;
}
.menu2:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	left:.75em;
	width:.5em;
	height:.5em;
	background-color:#000;
	border-radius:50%;
}
.download {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:.8em;
	border-width:.3em;
	border-style:none solid solid;
	border-color:#000;
}
.download:before {
	content:"";
	position:absolute;
	right:0;
	bottom:.7em;
	left:0;
	margin:auto;
	width:.3em;
	height:1em;
	background-color:#000;
}
.download:after {
	content:"";
	position:absolute;
	right:0;
	bottom:.2em;
	left:0;
	margin:auto;
	width:0;
	height:0;
	border-right:.6em solid transparent;
	border-top:.6em solid #000;
	border-left:.6em solid transparent;
}
.upload {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:.8em;
	border-width:.3em;
	border-style:none solid solid;
	border-color:#000;
}
.upload:before {
	content:"";
	position:absolute;
	right:0;
	bottom:.2em;
	left:0;
	margin:auto;
	width:.3em;
	height:1em;
	background-color:#000;
}
.upload:after {
	content:"";
	position:absolute;
	right:0;
	bottom:1.1em;
	left:0;
	margin:auto;
	width:0;
	height:0;
	border-right:.6em solid transparent;
	border-bottom:.6em solid #000;
	border-left:.6em solid transparent;
}
.video {
	box-sizing:border-box;
	position:relative;
	width:1.5em;
	height:1.2em;
	background-color:#000;
	border-radius:.3em;
}
.video:after {
	content:"";
	position:absolute;
	top:50%;
	left:1.4em;
	margin-top:-.7em;
	width:0;
	height:0;
	border-top:.7em solid transparent;
	border-right:.6em solid #000;
	border-bottom:.7em solid transparent;
}
.voice {
	box-sizing:border-box;
	position:relative;
	width:1.4em;
	height:1em;
	border-width:.2em;
	border-style:none none solid;
	border-color:#000;
	border-radius:50%;
}
.voice:before {
	content:"";
	position:absolute;
	right:0;
	left:0;
	bottom:.05em;
	margin:auto;
	width:.8em;
	height:1.3em;
	background-color:#000;
	border-radius:.4em;
}
.voice:after {
	content:"";
	position:absolute;
	right:0;
	bottom:-.6em;
	left:0;
	margin:auto;
	width:0;
	height:0;
	border-right:.6em solid transparent;
	border-bottom:.4em solid #000;
	border-left:.6em solid transparent;
}
.play {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	border:.2em solid #000;
	border-radius:50%;
}
.play:after {
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:-.3em;
	/*没有让其左右居中，因为看起来右边更空一些*/
				width:0;
	height:0;
	border-top:.6em solid transparent;
	border-bottom:.6em solid transparent;
	border-left:.9em solid #000;
}
.pause {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	border:.2em solid #000;
	border-radius:50%;
}
.pause:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:-.35em;
	width:.2em;
	height:.9em;
	background-color:#000;
}
.pause:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:.15em;
	width:.2em;
	height:.9em;
	background-color:#000;
}
.previous {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	border:.2em solid #000;
	border-radius:50%;
}
.previous:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:-.65em;
	width:0;
	height:0;
	border-top:.45em solid transparent;
	border-bottom:.45em solid transparent;
	border-right:.6em solid #000;
}
.previous:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:-.2em;
	width:0;
	height:0;
	border-top:.45em solid transparent;
	border-bottom:.45em solid transparent;
	border-right:.6em solid #000;
}
.next {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	border:.2em solid #000;
	border-radius:50%;
}
.next:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:-.4em;
	width:0;
	height:0;
	border-top:.45em solid transparent;
	border-bottom:.45em solid transparent;
	border-left:.6em solid #000;
}
.next:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	bottom:0;
	left:50%;
	margin-top:auto;
	margin-bottom:auto;
	margin-left:.05em;
	width:0;
	height:0;
	border-top:.45em solid transparent;
	border-bottom:.45em solid transparent;
	border-left:.6em solid #000;
}
.stop {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:2em;
	border:.2em solid #000;
	border-radius:50%;
}
.stop:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:.9em;
	height:.9em;
	background-color:#000;
}
.position {
	position:relative;
	width:.6em;
	height:.6em;
	border:.4em solid #000;
	border-radius:50%;
}
.position:after {
	content:"";
	position:absolute;
	top:.55em;
	left:-.4em;
	width:0;
	height:0;
	border-top:1em solid #000;
	border-right:.7em solid transparent;
	border-left:.7em solid transparent;
	border-top-left-radius:50%;
	border-top-right-radius:50%;
}
.pc {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:1.4em;
	border-width:.2em .2em .3em;
	border-style:solid;
	border-color:#000;
	border-radius:.2em;
	background-color:#efefef;
}
.pc:before {
	content:"";
	position:absolute;
	top:1.2em;
	right:0;
	left:0;
	margin:auto;
	width:.6em;
	height:.4em;
	background-color:#000;
}
.pc:after {
	content:"";
	position:absolute;
	top:1.6em;
	right:0;
	left:0;
	margin:auto;
	width:1.6em;
	height:.2em;
	background-color:#000;
}
.phone {
	box-sizing:border-box;
	position:relative;
	width:1.4em;
	height:2em;
	background-color:#efefef;
	border-width:.3em .2em .5em;
	border-style:solid;
	border-color:#000;
	border-radius:.15em;
}
.phone:after {
	content:"";
	position:absolute;
	right:0;
	bottom:-.4em;
	left:0;
	margin:auto;
	width:.5em;
	height:.3em;
	background-color:#fff;
	border-radius:.3em;
}
.search {
	box-sizing:border-box;
	position:relative;
	width:1em;
	height:.3em;
	background-color:#000;
	border-top-right-radius:.15em;
	border-bottom-right-radius:.15em;
	transform:rotate(40deg);
	transform-origin:right center;
}
.search:before {
	content:"";
	position:absolute;
	left:-1.3em;
	bottom:-.6em;
	width:1em;
	height:1em;
	border:.3em solid #000;
	border-radius:50%;
}
.star {
	box-sizing:border-box;
	position:relative;
	width:0;
	height:0;
	border-top:.7em solid #000;
	border-right:1em solid transparent;
	border-left:1em solid transparent;
}
.star:before {
	content:"";
	position:absolute;
	top:-.7em;
	left:-1em;
	width:0;
	height:0;
	border-top:.7em solid #000;
	border-right:1em solid transparent;
	border-left:1em solid transparent;
	transform:rotate(72deg);
}
.star:after {
	content:"";
	position:absolute;
	top:-.7em;
	left:-1em;
	width:0;
	height:0;
	border-top:.7em solid #000;
	border-right:1em solid transparent;
	border-left:1em solid transparent;
	transform:rotate(-72deg);
}
.email {
	box-sizing:border-box;
	position:relative;
	width:0;
	height:0;
	border-width:.7em 1em;
	border-style:solid;
	border-color:transparent transparent #000 #000;
}
.email:before {
	content:"";
	position:absolute;
	top:-.7em;
	left:1em;
	transform:rotateY(180deg);
	transform-origin:left center;
	width:0;
	height:0;
	border-width:.7em 1em;
	border-style:solid;
	border-color:transparent transparent #000 #000;
}
.email:after {
	content:"";
	position:absolute;
	top:-.7em;
	left:50%;
	margin-left:-.9em;
	width:0;
	height:0;
	border-top:.6em solid #000;
	border-right:.9em solid transparent;
	border-left:.9em solid transparent;
}
.eye {
	box-sizing:border-box;
	position:relative;
	width:2em;
	height:1.2em;
	background-color:#000;
	border-radius:50%;
}
.eye:before {
	content:"";
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:.8em;
	height:.8em;
	background-color:#fff;
	border-radius:50%;
}
.eye:after {
	content:"";
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:.4em;
	height:.4em;
	background-color:#000;
	border-radius:50%;
}
.unlock {
	box-sizing:border-box;
	position:relative;
	width:1.6em;
	height:1.4em;
	background-color:#000;
	border-radius:.2em;
}
.unlock:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:-.4em;
	right:-.4em;
	width:1em;
	height:.6em;
	border-width:.2em;
	border-style:solid solid none;
	border-color:#000;
	border-radius:.5em;
}
.unlock:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	bottom:.2em;
	left:50%;
	margin-left:-.15em;
	width:.3em;
	height:.5em;
	border-top-left-radius:.25em;
	border-top-right-radius:.25em;
	background-color:#fff;
}
.cup {
	box-sizing:border-box;
	position:relative;
	width:1.3em;
	height:2em;
	border-width:.2em .2em 1.2em;
	border-style:solid;
	border-color:#000;
	background-color:#efefef;
	border-bottom-left-radius:.3em;
	border-bottom-right-radius:.3em;
}
.cup:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:.1em;
	left:-.7em;
	width:.7em;
	height:1.4em;
	border-width:.2em;
	border-style:solid;
	border-color:#000;
	border-top-left-radius:.3em;
	border-bottom-left-radius:.3em;
}
.heart {
	position:relative;
	width:1.4em;
	height:2em;
	background-color:#000;
	border-top-left-radius:1em;
	border-top-right-radius:1em;
	transform:rotate(-45deg);
	transform-origin:center bottom;
}
.heart:after {
	content:"";
	position:absolute;
	top:-.7em;
	left:-.7em;
	width:1.4em;
	height:2em;
	background-color:#000;
	border-top-left-radius:1em;
	border-top-right-radius:1em;
	transform:rotate(90deg);
	transform-origin:center bottom;
}
.home {
	box-sizing:border-box;
	position:relative;
	width:1.4em;
	height:1em;
	background-color:#000;
}
.home:before {
	content:"";
	position:absolute;
	top:-.7em;
	left:50%;
	margin-left:-1em;
	border-left:1em solid transparent;
	border-right:1em solid transparent;
	border-bottom:.8em solid #000;
}
.home:after {
	z-index:2;
	content:"";
	position:absolute;
	right:0;
	bottom:0;
	left:0;
	margin:auto;
	width:.3em;
	height:.5em;
	background-color:#fff;
}
.password {
	box-sizing:border-box;
	position:relative;
	width:1.8em;
	height:1.4em;
	background-color:#000;
	border-radius:.2em;
}
.password:before {
	box-sizing:border-box;
	content:"";
	position:absolute;
	top:-.6em;
	left:50%;
	margin-left:-.5em;
	width:1em;
	height:1em;
	border:.2em solid #000;
	border-radius:50%;
}
.password:after {
	box-sizing:border-box;
	content:"";
	position:absolute;
	bottom:.2em;
	left:50%;
	margin-left:-.15em;
	width:.3em;
	height:.5em;
	border-top-left-radius:.25em;
	border-top-right-radius:.25em;
	background-color:#fff;
}
.user {
	box-sizing:border-box;
	position:relative;
	width:.9em;
	height:.9em;
	background-color:#000;
	border-radius:50%;
}
.user:after {
	content:"";
	position:absolute;
	top:1em;
	left:50%;
	margin-left:-.9em;
	width:1.8em;
	height:1em;
	background-color:#000;
	border-top-left-radius:.9em;
	border-top-right-radius:.9em;
}