#navbar{
    display: flex;
}
#navbar>h3{
    margin-left: 10px;
}

#mobile_list{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 20px;
}

#mobile_list>div>img{
    width: 100%;
    height: 400px;
    margin-top: 20px;
}