.home_pre
{
padding-left:30px;
padding-right:30px;
line-height: 20px;
font-size:16px;
}
.home_pre h4{font-size:22px;margin: 0px;padding: 0px;margin-bottom:5px;}
.home_pre li{font-size:12px;}
.middle{
background-image: none;
}