Colors

.custom_a1,
.custom_a2,
.custom_a3,
.custom_a4{
width:800px;
height:100px;
line-height:100px;
color:#FFF;
text-align:center;
font-weight: 400;
font-family: "microsoft yahei";
font-size: 48px;
margin:10px;
}
.custom_a1{background: none repeat scroll 0% 0% rgba(137, 212, 40, 0.8);}
.custom_a2{background: none repeat scroll 0% 0% rgba(255, 74, 74, 0.8);}
.custom_a3{background: none repeat scroll 0% 0% rgba(255, 152, 30, 0.8);}
.custom_a4{background: none repeat scroll 0% 0% rgba(67, 172, 231, 0.8);}

1.Bootstrap - Flat UI - ColorSwatches

2.红色框

红色框

3.手机BUTTON

4.半透色

测试rgba(137, 212, 40, 0.8)

测试rgba(255, 74, 74, 0.8)

测试rgba(255, 152, 30, 0.8)

测试rgba(67, 172, 231, 0.8)

5.Tmall分类

6.empty