.development-a{
    padding: 10px 0 320px 0;  
    background: url(../images/a_bg.png) no-repeat 5px 15px;  margin-bottom: 35px;
}
.development-a li{
    margin-bottom: 35px;  
    background: url(../images/line.png) no-repeat 85px bottom;  font: normal 16px/24px 'microsoft yahei';  color: #333;  
    padding: 0 0px 35px 80px;  position: relative;
    list-style-type: none;
}
.development-a li h4{
    display: block;  font: bold 28px/100% 'arial';  color: #748186;  
    background: url(../images/arrow.png) no-repeat 6px center;  
    padding: 0 25px 0 25px;  
    color: #F36D16;    left: 0;
}