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select 的 placeholder_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-21 08:49:301556browse

select的placeholder其实是无效的。所以很多人想了一些奇技淫巧,比如利用HTML的标签:

XML/HTML代码

<select>      <option value="" disabled selected hidden>Please Choose</option>      <option value="0">Open when powered (most valves do this)</option>      <option value="1">Closed when powered, auto-opens when power is cut</option>  </select>  

这样就可以看得到,但点击下拉框的时候,就不在选项里了,可以到这里看效果:http://cssdeck.com/labs/hxovifav,

但其实这不应该出现在前端面前,prompt不就是针对select的吗?

select的placeholder的属性确实无效,它应该使用prompt!!!

象上面的代码就应该写成:

XML/HTML代码

<select prompt="Plaese Choose">      <option value="0"> 0 </option>      <option value="1" 1 </option>  </select>  

很多资料里都应该有吧?

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