CSS垂直居中和水平居中方法總結(jié)

1、單行垂直居中
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文字在層中垂直居中vertical-align 屬性是做不到的.我們這里有個(gè)比較巧妙的方法就是:設(shè)置height的高度與line-height的高度相同!
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<div style=”line-height:500px;height:500;”></div>
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2、層水平居中
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設(shè)置div的寬度小于父div的寬度，設(shè)置 margin:0 auto;，即可讓div居中。
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#parentdiv
?{
?width: 500px;
?}
?#childdiv {
?width: 200px;
?margin:0 auto;
?}
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3、層中的文字水平居中
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在childdiv的css加上text-align:center;
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#parentdiv
?{
?width: 500px;
?}
?#childdiv {
?width: 200px;
?margin:0 auto;
?text-align:center;
?}
?

4、div層垂直居中
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<div style=”width:275px;height:375px;border: solid red;”>
?<div style=” background:green;height: 375px; width: 275px; position: relative; display: table-cell; vertical-align: middle;”>
????? <div style=” background:red;position:static;position:absolute\9; top: 50%;”>
???????? <div style=” background:blue;position: relative; top: -50%;”>
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?</div>
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5、div層垂直水平居中，英文超長(zhǎng)換行
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?? <div style=”float:left;width:275px;height:375px;border: solid red;”>
?<div style=” height: 375px; width: 275px; position: relative; display: table-cell; vertical-align: middle;”>
?????????? <div style=”position:static;position:absolute\9; top: 50%;”>
??????????? <div style=”position: relative; top: -50%; text-align: center;”>
?????????????? <div style=”width: 85px;WORD-WRAP: break-word;TABLE-LAYOUT: fixed;word-break:break-all;margin:0 auto;”>
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?</div>
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6、div垂直滾動(dòng)
?<div style=”width: 160px; height: 260px; overflow-y: scroll; border: 1px solid;”>http://www.51xuedeiannao.com </div>
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7、垂直居中和使用text-align水平居中
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<div style=”float:left;width:275px;height:375px;border: solid red;”>
?<div style=” height: 375px; width: 275px; position: relative; display: table-cell; vertical-align: middle;”>
?????????? <div style=”position:static;position:absolute\9;top: 50%;”>
??????????? <div style=”position: relative; top: -50%; text-align:center;”>
???????????? <div style=”width: 275px;”>
?????????????????????? <div style=”width: 160px;WORD-WRAP: break-word;TABLE-LAYOUT: fixed;word-break:break-all;text-align:left;”>
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?</div>
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8、垂直居中和使用margin水平居中
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??? <div style=”float:left;width:275px;height:375px;border: solid red;”>
?<div style=” height: 375px; width: 275px; position: relative; display: table-cell; vertical-align: middle;”>
?????????? <div style=”position:static;position:absolute\9; top: 50%;”>
??????????? <div style=”position: relative; top: -50%; “>
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?????????????????????? <div style=”margin:0 auto;width: 160px;WORD-WRAP: break-word;TABLE-LAYOUT: fixed;word-break:break-all;”>
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?????????????? </div>
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?</div>