.wdkbt {
display: block;
color: #fff;
font-size: 18px;
line-height: 2em;
position: absolute;
left: 0;bottom: 0;
width: 100%;
line-height: 60px;
background: url(images/bjbj.png);}
.wdkbtt {width: 100%;height: 100%;}

.section3 h2>a:hover{color:#d81010;}
.wdkbt {
display: block;
color: #fff;
font-size: 18px;
line-height: 2em;
position: absolute;
left: 0;bottom: 0;
width: 100%;
line-height: 60px;
background: url(images/bjbj.png);}
.wdkbtt {width: 100%;height: 100%;}

.section3 h2>a:hover{color:#d81010;}