内容概要:
一、div和span
(1)块级标签:div
(2)内联标签:span
如图所示:
二、盒模型(重要)
注:可用浏览器的调试工具可查看盒子
(1)margin:盒子外边距
(2)padding:盒子内边距(会改变块的大小)
(3)border:盒子边框宽度
(4)width:盒子宽度
(5)height:盒子高度
①:外边距和内边距区别:
demo.html
<!doctype html> <html> <head> <title>Div+Css布局(div+span以及盒模型)</title> <meta charset="utf-8"> <style type="text/css"> body{ margin:0; padding:0; background:#C5C1AA; } div{ height:500px; margin:60px; padding:o; border:solid 2px black; background-color:rgba(255,0,0,0.7); } div.div1{ height:400px; margin:0 audio; border:solid 3px black; background-color:rgba(0,0,255,0.7); } </style> </head> <body> <div> <div class="div1"> <h1 style="text-align:center;">欢迎登录系统</h1> <h4 style="text-align:center;">账号:<input style="text"></h4> <h4 style="text-align:center;">密码:<input style="text"></h4> </div> </div> </body> </html>
②:盒子模型div摆放例子:
demo.html
<!doctype html> <html> <head> <title>Div+Css布局(div+span以及盒模型)</title> <meta charset="utf-8"> <style type="text/css"> body{ margin:0; padding:0; background-color:rgba(0,0,255,0.3); } div{ width:500px; height:500px; background-color:rgba(250,128,10,0.8); margin:0 auto; /* 使div居中*/ border:solid black; } div.div1{ float:left; /* 向左排列/* background-color:rgba(255,0,0,0.4); border:solid blue; height:244px; width:244px; margin:0; padding:0; } </style> </head> <body> <div> <div class="div1"></div> <div class="div1"></div> </div> </body> </html>
时间: 2024-10-19 02:13:42