//头部组件
.item0{
    float: left;
}

.item1{
    float: left;
    margin-left: 16px;
    line-height: 34px;
}
.item2{
    float: right;
}

.clear{
    clear: both;
}
.clear0{
    .clear();
    margin-bottom: 35px;
}
