.content{
    width: 1044px;
    margin: 55px auto 80px;
    background: url('../images/manageBj.jpg')no-repeat left -20px;
    padding-left: 56px;
    padding-bottom: 100px;
}
.content li{
    margin-bottom: 50px;
}
.cont-lt {
    float: left;
    width: 420px;
    
}
.cont-rt{
    float: left;
    width: 420px;
}
.cont-rt img{
    width: 416px;
}
.cont-lt img{
    width: 416px;
}
.content li div:nth-child(even){
    margin-left: 122px;
}
.cont-lt h5{
    font-size: 24px;
}
.cont-lt p{
    font-size: 18px;
    color: #4c4c4c;
    margin-top: 9px;
    line-height: 42px;
}