22个必须知道的css技巧
1、改变选中文字的背景和颜色
<PRE style="LINE-HEIGHT: 24px; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); FONT-VARIANT: normal; FONT-STYLE: normal; TEXT-INDENT: 0px; MARGIN: 0px 0px 10px; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); FONT-SIZE: 13px; FONT-WEIGHT: normal; WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"> ::selection{ /* Safari and Opera */ background:#c3effd; color:#000; } ::-moz-selection{ /* Firefox */ background:#c3effd; color:#000; }</PRE>
2、防止火狐滚动条跳动 html{ overflow-y:scroll; }
3、分页打印 page-break{ page-break-before:always; }
4、使用!important
.page { background-color:blue !important; background-color:red;}
5、图像替换文字
.header{ text-indent:-9999px; background:url('someimage.jpg') no-repeat; height: 100px; /*dimensions equal to image size*/ width:500px; }
6、兼容浏览器的最小高度
#container{ height:auto !important;/*all browsers except ie6 will respect the !important flag*/ min-height:500px; height:500px;/*Should have the same value as the min height above*/ }
7、对新窗口打开得链接高亮显示
a[target="_blank"]:before, a[target="new"]:before { margin:0 5px 0 0; padding:1px; outline:1px solid #333; color:#333; background:#ff9; font:12px "Zapf Dingbats"; content: "\279C"; }
8、美化li序列号
ol { font: italic 1em Georgia, Times, serif; color: #999999; } ol p { font: normal .8em Arial, Helvetica, sans-serif; color: #000000; }
9、首字下沉
p:first-letter{ display:block; margin:5px 0 0 5px; float:left; color:#FF3366; font-size:3.0em; font-family:Georgia; }
10、兼容浏览器的opacity
.transparent_class { filter:alpha(opacity=50); -moz-opacity:0.5; -khtml-opacity: 0.5; opacity: 0.5; }
11、使用line-height实现垂直居中
line-height:30px;
12、居中布局
body{ width:1000px; margin:0 auto; }
13、移除ie文本域的垂直滚动条
textarea{ overflow:auto; }
14、移动超链接的虚线框
a:active, a:focus{ outline:none; }
15、ie下元素消失,给该元素添加
position:relative;
16、根据链接不一样,添加不一样的icons
a[href$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$='.doc'] { padding:0 20px 0 0; background:transparent url(/graphics/icons/doc.gif) no-repeat center right; }
17、css手型点击样式
input[type=submit],label,select,.pointer { cursor:pointer; }
18、字母大写
text-transform: capitalize;
19、所有英文大写,且首字母比其他的大
font-variant:small-caps;
20、高亮文本框,不支持ie
input[type=text]:focus, input[type=password]:focus{ border:2px solid #000; }
21、移除img边框
a img{ border:none; }
22、用label实现无表格表单
<form method="post" action="#" > <p><label for="username" >Username</label> <input type="text" id="username" name="username" /> </p> <p><label for="password" >Username</label> <input type="password" id="password" name="pass" /> </p> <p><input type="submit" value="Submit" /></p> </form> p label{ width:100px; float:left; margin-right:10px; text-align:right; }
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