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<h1>php中文網(wǎng)</h1>
<h2>php中文網(wǎng)</h2>
<h3>php中文網(wǎng)</h3>
<h4>php中文網(wǎng)</h4>

css:

h1{
  color: cadetblue;
}
h2{
    color: cadetblue;
}
h3{
    color: cadetblue;
}
h4{
    color: cadetblue;
}

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QQ截圖20161011173832.png

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h1,h2,h3,h4{
  color: cadetblue;
}

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QQ截圖20161011173832.png

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*{  color: cadetblue;
}

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h4{    color: darkslategray;
}

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QQ截圖20161011174340.png

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <link rel="stylesheet" type="text/css" href="style.css" /> <title>Title</title> </head> <body> <h1>php中文網(wǎng)</h1> <h2>php中文網(wǎng)</h2> <h3>php中文網(wǎng)</h3> <h4>php中文網(wǎng)</h4> </body> </html>