jquery实现常用UI布局

tab

• html

<div class="tab">
    <ul class="tab-title">
        <li class="tab-this">item1</li>
        <li>item2</li>
        <li>item3</li>
    </ul>
    <div class="tab-content">
        <div class="tab-item show">item1xxx</div>
        <div class="tab-item">item2xxx</div>
        <div class="tab-item">item3xxx</div>
    </div>
</div>

• css

*{
    padding: 0; margin: 0; text-decoration: none; list-style: none;
    font-family: Consolas;
}
.tab{
    margin: 20px;
}
/*tab-title*/
.tab-title {
    height: 40px;
    position: relative;
    left: 0;
    white-space: nowrap;
    border-bottom- 1px;
    border-bottom-style: solid;
    border-color: #e2e2e2;
    transition: all .2s;
    -webkit-transition: all .2s;
}
.tab-title>li{
    display: inline-block;
    padding: 0 15px;
    text-align: center;
    cursor: pointer;
    line-height: 40px;
    min- 65px;
    position: relative;
}
.tab-title .tab-this:after {
    position: absolute;
    left: 0;
    top: 0;
    content: '';
     100%;
    height: 41px;
    border- 1px;
    border-style: solid;
    border-color: #e2e2e2;
    border-bottom-color: #fff;
    border-radius: 2px 2px 0 0;
    box-sizing: border-box;
    pointer-events: none;
}
.tab-item{
    display: none;
}
.show{
    display: block !important;
}

• js

$('body').on('click','.tab-title>li:not(.tab-this)', function(){
     $(this).siblings().removeClass('tab-this');
     $(this).addClass('tab-this');
     var index = $(this).prevAll().length+1;
     $('.tab-content>div').removeClass('show');
     $('.tab-content>div:nth-child('+index+')').addClass('show');
 });