.wrapper{
    max-height: 402px;
    border: 1px solid #ddd;
    display: flex;
    overflow-x: auto;
}

.wrapper ::-webkit-scrollbar{
    width: 0;
}
.wrapper .item{
    min-width: 400px;
    height: 350px;
    line-height: 10px;
    text-align: center;
    background-color: #ddd;
    margin-right: 5px;
}

.box1 {background-image: url(https://tse1.explicit.bing.net/th/id/OIP.PbGJ_qF64bXiaXpkNPIfmAHaFj?rs=1&pid=ImgDetMain&o=7&rm=3); }
.box2 {background-image: url(https://tse2.mm.bing.net/th/id/OIP.qYEC7KeQLQ-i5FCNbWpV7AHaDt?rs=1&pid=ImgDetMain&o=7&rm=3); }
.box3 {background-image: url(https://tse2.mm.bing.net/th/id/OIP.qYEC7KeQLQ-i5FCNbWpV7AHaDt?rs=1&pid=ImgDetMain&o=7&rm=3); }
.box4 {background-image: url(https://tse2.mm.bing.net/th/id/OIP.qYEC7KeQLQ-i5FCNbWpV7AHaDt?rs=1&pid=ImgDetMain&o=7&rm=3); }
.box5 {background-image: url(https://tse2.mm.bing.net/th/id/OIP.qYEC7KeQLQ-i5FCNbWpV7AHaDt?rs=1&pid=ImgDetMain&o=7&rm=3); }
.box6 {background-image: url(https://tse2.mm.bing.net/th/id/OIP.qYEC7KeQLQ-i5FCNbWpV7AHaDt?rs=1&pid=ImgDetMain&o=7&rm=3); }