*{margin:0;padding:0}
body,html{
    background:#efefef
}
header{
     font-size:1.2em;
     font-family:"微软雅黑","黑体",serif;
     line-height:2.8em;
     padding:0 5%;
    background:#5c7d17;
    border-bottom:1px solid #5c7d17;
 }
header .form-control{
    font-size:.8em!important;
    padding:.1em .2em!important
}
#main{
    width:95%;
    min-height:30em;
    margin:1.2em auto
}
.l1{
    color:white;
    font-size: 16px;
    font-family: "Microsoft YaHei", sans-serif;
}
.form-group{
    margin-right:12px;
}