例：属性中做字符串拆分，只要能拆分出来value这个字符串就行；
div [class *= hello]{
font-size:16px;
color: red;
}
<div id="div2">
<div class="dd"></div>
<div class="dd ssshello"> Lorem ipsum dolor sit amet, consectetur adipisicing elit. A beatae, deleniti deserunt dolor est expedita facilis illum in iusto laboriosam magnam nihil nostrum omnis perspiciatis quis sunt ullam vel voluptatem?</div>//正确
<div class="dd"></div>
<div class="dd"></div>
<div class="dd"></div>
</div>
eg:[title*=flower] <img src="/i/eg_tulip.jpg" title="ffffflowerrrrrr" />
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