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定义select的边框颜色_表单特效

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Release： 2016-05-16 19:04:49
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具体步骤：
    1.用margin属性实现。先设置margin属性为-2，以隐藏select对象原来的边框，然后设置select对象的父对象的边框。


 


2.margin属性结合clip属性实现。也是先用margin隐藏select的原边框，再用clip控制select的可视区域，以彻底隐藏select的原边框，最后通过定义select的父对象的边框作为最后看到的select的边框。

width:80;height:20">
 


注意：方法2中必须设置SPAN和SELECT元素的position属性为absolute。
特别提示
本例两段代码的运行效果分别如图2.1.6.6和图2.1.6.7所示，仔细对比，可以发现有一些微小的差别。

图2.1.6.6 定义SELECT的边框效果一

图2.1.6.7 定义SELECT的边框效果二

特别说明


本例主要是clip属性和margint属性的应用，因为SELECT控件的特殊性，无法直接定义其边框样式，所以必须掌握本例所用的技巧。
Related labels：
select definition frame color
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