/* ------------------------------------------
 * IT书包
 * 网址：www.itshubao.com
 * 整理：yinq<3331653644@qq.com> 
 -------------------------------------------- */
*, *:before, *:after {
	box-sizing: border-box;
}
body {
	font-family: "Open Sans";
	font-weight: 300;
	margin: 2rem;
	background: #4a4a4a;
	-webkit-backface-visibility: hidden;
}
h1 {
	text-align: center;
	color: #fff;
	font-weight: 300;
	margin-bottom: 4rem;
}
.container {
	width: 80%;
	margin: 0 auto;
}
.switch {
	margin: 4rem auto;
}
/* main styles */
.switch {
	width: 24rem;
	position: relative;
}
.switch input {
	position: absolute;
	top: 0;
	z-index: 2;
	opacity: 0;
	cursor: pointer;
}
.switch input:checked {
	z-index: 1;
}
.switch input:checked + label {
	opacity: 1;
	cursor: default;
}
.switch input:not(:checked) + label:hover {
	opacity: 0.5;
}
.switch label {
	color: #fff;
	opacity: 0.33;
	transition: opacity 0.25s ease;
	cursor: pointer;
}
.switch .toggle-outside {
	height: 100%;
	border-radius: 2rem;
	padding: 0.25rem;
	overflow: hidden;
	transition: 0.25s ease all;
}
.switch .toggle-inside {
	border-radius: 5rem;
	background: #4a4a4a;
	position: absolute;
	transition: 0.25s ease all;
}
.switch--horizontal {
	width: 18rem;
	height: 3rem;
	margin: 0 auto;
	font-size: 0;
	margin-bottom: 1rem;
}
.switch--horizontal input {
	height: 3rem;
	width: 6rem;
	left: 6rem;
	margin: 0;
}
.switch--horizontal label {
	font-size: 1.5rem;
	line-height: 3rem;
	display: inline-block;
	width: 6rem;
	height: 100%;
	margin: 0;
	text-align: center;
}
.switch--horizontal label:last-of-type {
	margin-left: 6rem;
}
.switch--horizontal .toggle-outside {
	background: #fff;
	position: absolute;
	width: 6rem;
	left: 6rem;
}
.switch--horizontal .toggle-inside {
	height: 2.5rem;
	width: 2.5rem;
}
.switch--horizontal input:checked ~ .toggle-outside .toggle-inside {
	left: 0.25rem;
}
.switch--horizontal input ~ input:checked ~ .toggle-outside .toggle-inside {
	left: 3.25rem;
}
.switch--vertical {
	width: 12rem;
	height: 6rem;
}
.switch--vertical input {
	height: 100%;
	width: 3rem;
	right: 0;
	margin: 0;
}
.switch--vertical label {
	font-size: 1.5rem;
	line-height: 3rem;
	display: block;
	width: 8rem;
	height: 50%;
	margin: 0;
	text-align: center;
}
.switch--vertical .toggle-outside {
	background: #fff;
	position: absolute;
	width: 3rem;
	height: 100%;
	right: 0;
	top: 0;
}
.switch--vertical .toggle-inside {
	height: 2.5rem;
	left: 0.25rem;
	top: 0.25rem;
	width: 2.5rem;
}
.switch--vertical input:checked ~ .toggle-outside .toggle-inside {
	top: 0.25rem;
}
.switch--vertical input ~ input:checked ~ .toggle-outside .toggle-inside {
	top: 3.25rem;
}
.switch--no-label label {
	width: 0;
	height: 0;
	visibility: hidden;
	overflow: hidden;
}
.switch--no-label input:checked ~ .toggle-outside .toggle-inside {
	background: rgba(0,0,0,0.2);
	border: 1px solid rgba(0,0,0,0.2);
}
.switch--no-label input ~ input:checked ~ .toggle-outside {
	background: #fff;
}
.switch--no-label input ~ input:checked ~ .toggle-outside .toggle-inside {
	background: #2ecc71;
}
.switch--no-label.switch--vertical {
	width: 3rem;
}
.switch--no-label.switch--horizontal {
	width: 6rem;
}
.switch--no-label.switch--horizontal input, .switch--no-label.switch--horizontal .toggle-outside {
	left: 0;
}
.switch--expanding-inner input:checked + label:hover ~ .toggle-outside .toggle-inside {
	height: 2.5rem;
	width: 2.5rem;
}
.switch--expanding-inner.switch--horizontal input:hover ~ .toggle-outside .toggle-inside {
	width: 3.5rem;
}
.switch--expanding-inner.switch--horizontal input:hover ~ input:checked ~ .toggle-outside .toggle-inside {
	left: 2.25rem;
}
.switch--expanding-inner.switch--vertical input:hover ~ .toggle-outside .toggle-inside {
	height: 3.5rem;
}
.switch--expanding-inner.switch--vertical input:hover ~ input:checked ~ .toggle-outside .toggle-inside {
	top: 2.25rem;
}
/* mixin */