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块级元素和行内元素
2020-11-09 12:27:00 【归子莫】
块级元素和行内元素
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行内元素和块级元素的区别:
行内元素:
- 与其他行内元素并排
- 不能设置宽高,默认的宽度就是文字的宽度
块级元素:
- 霸占一行,不能与其他任何元素并列。
- 能接受宽高,如果不设置宽度,那么宽度将默认变为父级的100%。
块级元素和行内元素的分类:
-
在HTML的角度来讲,标签分为:
-
文本级标签:p , span , a , b , i , u , em
-
容器级标签:div , h系列 , li , dt ,dd
p:里面只能放文字和图片和表单元素,p里面不能放h和ul,也不能放p。
从CSS的角度讲,CSS的分类和上面的很像,就p不一样:
行内元素:除了p之外,所有的文本级标签,都是行内元素。p是个文本级标签,但是是个块级元素。
块级元素:所有的容器级标签,都是块级元素,以及p标签。
块级元素和行内元素的相互转换:
通过display属性将块级元素(比如div)和行内元素进行相互转换。
-
display:inline;
那么这个标签将变为行内元素,即:
1,此时这个div将不能设置宽度和高度了。
2,此时这个div可以和其他行内元素并排了。
用display将行内元素(比如span)转行成块级元素。
-
display:block;
那么这个span标签将变为块级标签,即:
1,此时这个span能够设置宽度,高度。
2,此时这个span必须独占一行,其他元素无法与之并排。
3,如果不设置宽度,将占满父级。
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本文为[归子莫]所创,转载请带上原文链接,感谢
https://my.oschina.net/guizimo/blog/4708904
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