<!DOCTYPE html>
<html> |
<head> |
</script> |
<script> |
$(document).ready(function(){ |
$("button").click(function(){ |
$("p").css({"background-color":"yellow","font-size":"200%"}); |
}); |
}); |
</script> |
</head> |
<body> |
<h2>This is a heading</h2> |
<p style="background-color:#ff0000">This is a paragraph.</p> |
<p style="background-color:#00ff00">This is a paragraph.</p> |
<p style="background-color:#0000ff">This is a paragraph.</p> |
<p>This is a paragraph.</p> |
<button>Set multiple styles for p</button> |
</body> |
</html> |
原文：http://www.cnblogs.com/mm2015/p/4661426.html