📖 File Reader
@charset "utf-8";
.limit{margin: 50px;}
.choose{display: flex; align-items: center; overflow: hidden; cursor: pointer; float: left;}
.choose label{display: block; cursor: pointer; font-weight: bold;margin-left: 5px; margin-top: 10px;}
.limit input{
outline:none;
appearance:none;
-moz-appearance:none;
-webkit-appearance:none;
-ms-appearance:none;
padding: 0;
margin: 0;
border: none;
width: 100%;
height: 100%;
background: #eee;
display: block;
width: 14px;
height: 14px;
box-sizing: border-box;
margin-right: 5px;
border: 1px #aaa solid;
margin-top: 40px;
}
.limit input:checked{background: #2ca300;border: 1px #2ca300 solid;}
.navTree{float: left; width: 100%; position: relative; background: url(../img/line_v.png) repeat-y 10px 0; margin-top:10px;}
.nav1{display: flex; align-items: center; overflow: hidden; cursor: pointer; float: left; margin-left: 8px;}
.nav1 label{display: block; cursor: pointer;margin-left: 5px; margin-top: 10px;}
.nav1 span{display: block; width: 5px; height: 9px; background: url(../img/j.png) no-repeat; background-size: 100% 100%;}
.nav1 i{display: block; width: 10px; height: 1px; background: url(../img/line_w.png) repeat-x;}
.navDown{float: left; width: 100%; position: relative; background: url(../img/line_v.png) repeat-y 10px ; margin-top:2px; margin-left: 20px;}
.nav2{display: flex; align-items: center; overflow: hidden; cursor: pointer; float: left; margin-left: 8px; margin-top: 5px;}
.nav2 label{display: block; cursor: pointer; color: #555;margin-left: 5px; margin-top: 10px;}
.nav2 span{display: block; width: 5px; height: 9px; background: url(../img/j.png) no-repeat; background-size: 100% 100%;}
.nav2 i{display: block; width: 10px; height: 1px; background: url(../img/line_w.png) repeat-x;}
.navDownLast{float: left; width: 100%; position: relative;margin-left: 15px;}
.nav3{display: flex; align-items: center; overflow: hidden; cursor: pointer; float: left; margin-left: 12px; margin-top: 5px;}
.nav3 label{display: block; cursor: pointer; color: #999; margin-left: 5px; margin-top: 10px;}