CSS透明
opacity: 0.5;
filter: alpha(opacity=50);
清除浮动影响
.clearfix:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
.clearfix {*zoom:1;}
响应式
@media screen and (min-width:1000px){ /*大于1000px*/ }
@media screen and (max-width:800px){ /*800px以内*/
.a{width:60%;}
.b{width:60%;}
.c{width:60%;}
}
css 文字处理
.fontstyle{
font: bold 12px/18px Arial, Helvetica, sans-serif ;
}
font:字体粗细 字体大小/行高 字体样式