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6 months ago

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提问

center h1 in the middle of screen（示例提问）

How can I center horizontally and vertically a text? I don't want to use position absolute because I try with it and my other div getting worse. Is there another way to do that ?div { height: 400px; width: 800px; background: red; }<div> <h1>This is title</h1> </div>

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a year ago

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提问

垂直对齐CSS:before和:after的内容（示例提问）

我正努力将链接与图像居中，但似乎无法以任何方式垂直移动内容。<h4>More Information</h4> <a href="#" class="pdf">File Name</a>该图标是22 x 22px的。.pdf { font-size: 12px; } .pdf:before { padding:0 5px 0 0; content: url(../img/icon/pdf_small.png); } .pdf:after { content: " ( .pdf )"; font-size: 10px; } .pdf:hover:after { color: #000; }

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