JSFiddle - React, Tailwind, and code Playground

HTML

<div class="one" id="one">
    id为one,class为one的div
    <div class="mini">class为mini</div>
</div>
<div class="one" id="two" title="test">
    id为two,class为one,title为test的div.
    <div class="mini" title="other">class为mini，title为other</div>
    <div class="mini" title="test">class为mini,title为test</div>
</div>
<div class="one">
    <div class="mini">class为mini</div>
    <div class="mini">class为mini</div>
    <div class="mini">class为mini</div>
    <div class="mini"></div>
</div>
<div class="one">
    <div class="mini">class为mini</div>
    <div class="mini">class为mini</div>
    <div class="mini">class为mini</div>
    <div class="mini" title="test">class为mini，title为test</div>
</div>
<div style="display:none;" class="none">
    style的display为"none"的div
</div>
<div class="hide">class为"hide"的div</div>
<div>
    包含input和type为"hidden"的div<input type="hidden" size="8"/>
</div>
<span id="mover">正在执行动画的span元素</span>

CSS

div,span,p{
    width:140px;
    height:140px;
    margin:5px;
    background:#aaa;
    border:#000 1px solid;
    float:left;
    font-size:17px;
    font-family:Verdana;
}
div.mini{
    width:55px;
    height:55px;
    background-color:#aaa;
    font-size:12px;
}
div.hide{
    display:none;
}

JavaScript

$("div:last").css("background","#bbffaa")