.content {
    padding: 30px 7px 0;
    box-sizing: border-box;
    overflow: hidden;
}
.d_item{
    width: 1100px;
    height: 383px;
    float: left;
    margin-bottom: 40px;
}
.content .d_item:nth-of-type(2n){
    float: right;
}
.content>div{
    position: relative;
    height: 383px;
}
.content>div .x_space{
    position: absolute;
    left: 50%;
    top: 14%;
}