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HomeWeb Front-endHTML Tutorial不值一提,却又不得不提的“CSS文本超出部分省略号代替” - 生旦净末丑

偶然看到一篇类似css技巧与经验总结的文章,其中有一部分非常熟悉,那就是“css控制元素内文本超出部分使用省略号代替”,一般实际工作中,

很多产品经理会对页面UI有这样的要求。还记得,第一次做这个功能时,是通过百度到的,然后就是一劳永逸,直接记事本记录下来,以后基本上

就是拿来主义,根本就没有去研究一下其中的原理(其实也没什么原理,方法也很简单,O(∩_∩)O哈哈~),恰逢今日又碰到了,那就做个了断吧。

 

实现如题的功能,我们常用的代码如下:

<span style="color: #800000;">p</span>{<span style="color: #ff0000;">

    width</span>:<span style="color: #0000ff;"> 100px</span>;<span style="color: #ff0000;">

    white-space</span>:<span style="color: #0000ff;"> nowrap</span>;<span style="color: #ff0000;">

    overflow</span>:<span style="color: #0000ff;"> hidden</span>;<span style="color: #ff0000;">

    text-overflow</span>:<span style="color: #0000ff;"> ellipsis</span>;

}

这里P标签的4个css属性都是必要的,这些属性都起到什么作用呢?

width:用于设置p标签的宽度,如果没有宽度,何为“超出”,对吧?即使是没有手动的为p标签设定宽度,那么p标签横向也会自动充满父元素,也就是所说的100%;

white-space:这个属性不得了,特别值为“nowrap”的时候,为何这么说呢,因为当块级元素内的文本如果超过一行,即多行时,文本默认是要换行的,绝不会出现溢出

的情况;但是如果元素设置了这个属性white-space:nowrap,那么文本会无视父元素的宽度限制,结果就是文本溢出,如下图:

结果就是这样,你说它牛叉不牛叉。

overflow:该属性是告诉元素,如果它内部包含的元素(图片、文本、其他元素等等)超出它的长宽范围时该如何处理,是显示滚动条呢,还是隐藏超出部分呢?而我们

当前所说的案例是需要超出的文本被隐藏,所以我们设置overflow:hidden。

text-overflow:这个属性是CSS3的新属性,下面是官方解释:

我们需要把它的值设为ellipsis,该值的意思就是以省略号代替超出的文本部分。

4个属性值组合起来使用,最后达到了这样的效果:

代码

运行结果

 

结语:希望此篇文章可以对像我一样“拿来主义”的童鞋们有所帮助

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