.computer {
    width: 1200px;
}
.computer .com {
    position: relative;
    margin-top: 25px;
    right: 30%;
    width: 738px;
    height:590px;
    margin-right: -180px;
    margin-bottom: 50px;
    /* justify-content: center; */
}

.computer .com_img {
    position: relative;
    margin-right: -350px;
    margin-top: 52px;
    width: 684px;
    height: 388px;
}
.computer .keyboard {
    position: absolute;
    margin-top: 590px;
    margin-left: 440px;
    clear:both;
    /* left: 10px; */
    width: 840px;
    height: 76px;
    z-index: 10;
}

.box_img .one {
    /* margin-top: 80px; */
    right: 30px;
    width: 900px;
    height: 564px;
    box-shadow:rgba(0,0,0,.3) 0px 10px 18px;
    /* box-shadow:px 0px 0px 18px rgba(0,0,0,0.5); */

}
.box_img .two {
    /* margin-top: 80px; */
    right: 330px;
    box-shadow:rgba(0,0,0,.3) 0px 10px 18px;
    width: 900px;
    height: 564px;
    /* z-index: 10; */
}

.box_img .four {
    height: 676px;
    width: 1200px;
    margin-right: 31px;
    /* margin-bottom: 100px; */
    width: 95%;
    box-shadow:rgba(0,0,0,.3) 0px 8px 18px;

}