@media(max-width:400px){

    .gellary_home_sudipta .child .child_sub{
        width: 90%;
        display: block;
        justify-items: center;
    }

    .gellary_home_sudipta .child .child_sub .section{
        width: 90%;
        height: 300px;
    }
    .gellary_home_sudipta .child .child_sub .section1{
        width: 90%;
        height: 350px;
        margin-top: 20px;
    }
}