.content {
    display: flex;
    box-sizing: border-box;

    .left {
        flex:1;
        box-sizing: border-box;
        .left_image {
            width: 100%;
            box-sizing: border-box;
        }
    }
    .right {
        flex:1;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        box-sizing: border-box;
        .right_image {
            width: 100%;
            vertical-align: middle;
            box-sizing: border-box;
        }
    }
}