div+css 中宽度不明水平居中
在css中设置了text-align：center 和margin：0 auto；但还是不能水平居中，
整体宽度不明，有背景，背景能延生的那种
急！急！急！急！
回复讨论(解决方案)
页面代码贴出来
宽度不明你就写100%
div{margin: 0 auto;width:100%;}
谢谢，各位。已解决。用了相对定位
谢谢，各位。已解决。用了相对定位
解决了就结贴吧
给div设置width，否则默认宽100%，看不出居中效果
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