Home Web Front-end Front-end Q&A How to achieve the effect of displaying ellipsis in the exceeded part in css

How to achieve the effect of displaying ellipsis in the exceeded part in css

Apr 26, 2023 pm 06:00 PM

在网页设计中,经常会遇到文字超出容器的情况。如果不处理,这不仅会破坏页面的美感,还会影响网页的可读性。那么,如何处理文字超出容器的情况呢?一种解决方法是使用CSS的文字超出部分显示省略号的属性。

一、CSS中的“text-overflow”属性

在CSS中,有一个名为“text-overflow”的属性可以实现文字超出部分显示省略号的效果。它可以应用于块级元素或行内块级元素,用于控制文本内容超出容器时的显示方式。

“text-overflow”属性的常见取值有:

  1. ellipsis:省略号形式显示超出部分;
  2. clip:直接剪切掉超出部分,不显示;
  3. string:以自定义的字符进行显示。

其中,“ellipsis”是最常用的取值。

二、用“text-overflow”属性实现文字省略的样式

下面是一个例子,使用“text-overflow”属性实现文字超出部分显示省略号的效果:

<style>
.box {
  width: 200px;
  height: 50px;
  overflow: hidden;
  white-space: nowrap; /* 防止文字换行 */
  text-overflow: ellipsis; /* 超出部分显示省略号 */
}
</style>
<div class="box">这是一段很长很长很长的文本,需要省略显示</div>
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该例子中,我们创建了一个&lt;div&gt;元素,设置了其宽度为200px、高度为50px,并设置了溢出部分隐藏属性overflow: hidden;。由于文字超出容器时会自动换行,因此我们还需要使用white-space: nowrap;属性防止文字换行。最后使用text-overflow: ellipsis;实现超出部分省略号的效果。

三、应用到不同元素上

除了&lt;div&gt;元素,text-overflow属性还可以应用于其他块级元素,如&lt;p&gt;&lt;h1&gt;&lt;ul&gt;等。

例如:

<p class="text">这是一段很长很长很长的文本,需要省略显示</p>
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.text {
  width: 200px;
  overflow: hidden;
  white-space: nowrap; 
  text-overflow: ellipsis; 
}
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四、注意事项

  1. 在使用text-overflow属性时,必须先设置overflow: hidden;,否则该属性无法生效。
  2. text-overflow属性只对单行文本生效,对于多行文本需要使用CSS3的-webkit-line-clamp属性或JavaScript进行处理。
  3. 当文字内容包含链接或表单元素等可点击或可操作的内容时,需要特殊处理。

总之,text-overflow属性在网页设计中非常实用,可以让网页更加美观易读。在使用时需要注意以上几点,能够让文字省略的样式更加完善、美观。

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