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元素显示模式:块级,行内,行内块,嵌套规范,显示模式转换
2022-07-27 05:03:00 【格鲁977】
Chrome调试模式下有Computed可以查看元素的显示模式。
1.块级元素(可独块)block
独占一行
宽度:父元素宽度(默认)
高度:由内容撑开(默认)
可设置宽高
eg:
hx(x=1~6),div , p , ul li , dl dt dd , form , header , nav , footer
2.行内元素(不可多行)inline
一行显多个,不换行
宽度由内容撑开
不可设宽高
(水平方向)padding和margin可以设置
eg:
a , span ,b , u , i , s , strong , ins , em ,del
3.行内块元素(可多行内块)inline-block
一行多个(中间存在间隙)
可设宽高
eg:
input , textarea , button ,select
img有行内块元素特点,但是Chrome显示为inline
HTML嵌套规范:
块级元素:大容器,可以嵌套:文本,块级,行内,行内块元素
但p不能嵌套div,p,h
行内元素:可以嵌套:文本,行内元素
a标签内部可以嵌套任意元素,除了自己
元素显示模式转换
块->行内:display: inline;
行内->块:display:block; (常用)
块,行内元素->行内块:display:inline-block; (常用)
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