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An in-depth analysis of css attribute selectors

醉折花枝作酒筹

Mar 31, 2021 pm 05:28 PM

css

In this article, let’s take a look at the attribute selector in CSS. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

An in-depth analysis of css attribute selectors

First type: E[att^=value]Attribute selector

This selector Only select the tag whose name is E, and it has the att attribute. The att attribute value contains the substring prefixed with value.

Note: E can be omitted. If omitted, it means matching any element that meets the conditions

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
    p[id^="one"]{
        color: pink;
        font-family: "微软雅黑";
        font-size: 20px;
    }
</style>
</head>
 
<body>
<p id="one">为了看日出，我常常早起。那时天还没有大亮，周围非常清静，船上只有机器的响声。</p>
<p id="two">天空还是一片浅蓝，颜色很浅。转眼间天边出现了一道红霞，慢慢地在扩大它的范围，加强它的亮光。我知道太阳要从天边升起来了，便转眼地望着那里。</p>
</body>
</html>

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The result is:

An in-depth analysis of css attribute selectors

We can see that the id whose name is one turns pink, and the id whose name is two The text has not changed.

Second type: E[att$=value]Attribute selector

This selector only selects the tag name E, and it has the attribute of att. The att attribute value contains the sub-characters suffixed with value. Like the E[att^=value] selector, the E element can be omitted. If omitted, it means that any element that meets the condition will be matched.

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
    p[id$="1"]{
        color:ocf;
        font-family: "宋体";
        font-size: 30px;
    }
</style>
</head>
 
<body>
<p id="one">盼望着，盼望着，东风来了，春天的脚步近了。</p>
<p id="two">小草偷偷地从土里钻出来，嫩嫩的，绿绿的。园子里，田野里，瞧去，一大片一大片满是的。坐着，躺着，打两个滚，踢几脚球，赛几趟，捉几回迷藏。风轻悄悄的，草绵软软的。</p>
<p id="one1">桃树、杏树、梨树，你不让我，我不让你，都开满了花赶趟儿。红的像火，粉的像霞，白的像雪。花里带着甜味，闭了眼，树上仿佛已经是桃儿、杏儿、梨儿！花下成千成百的蜜蜂嗡嗡地闹着……</p>
<p id="1two">“吹面不寒杨柳风”，不错的，像母亲的手抚摸着你。风里带来些新翻的泥土的气息，混着青草味，还有各种花的香，都在微微润湿的空气酝酿。鸟儿将窠巢安在繁花嫩叶当中，高兴起来了……</p>
</body>
</html>

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An in-depth analysis of css attribute selectors

We can clearly see that the font of id named one1 has become larger, and one1 Similar 1twoThe font size does not become larger. This is because this selector will only change if 1 is added after the string. Others are useless.

Third type: E[att*=value]Attribute selector

This selector only selects tags whose names are E, and at the same time It has the attribute of att, and the att attribute value contains the value substring. This selector is the same as the previous two selectors. The E element can also be omitted. If omitted, it means that any element that meets the condition can be matched.

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
    p[id*="1"]{
        color:greenyellow;
        font-family: "宋体";
        font-size: 20px;
    }
</style>
</head>
 
<body>
<p id="one">我们消受得秦淮河上的灯影，当四月犹皎的仲夏之夜。</p>
<p id="one1"> 小的灯舫初次在河中荡漾；于我，情景是颇朦胧，滋味是怪羞涩的。我要错认它作七里的山塘；可是，河房里明窗洞启，映着玲珑入画的栏干，顿然省得身在何处了……</p>
</body>
</html>

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An in-depth analysis of css attribute selectors

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