*{
    margin:0;
    padding:0;
    font-family:'Poppins','sans-serif';
    box-sizing:border-box;
}

body{
    background:#191919;
}
.gallery{
    width:900px;
    display:flex;
    overflow-x:scroll;
}
.gallery div{
    width:100%;
    display:grid;
    grid-template-columns:auto auto auto;
    grid-gap:20px;
    padding:10px;
    flex:none;
}
.gallery div img{
    width:100%;
    filter:grayscale(100%);
    transition:transform 0.5s;
}
.gallery::-webkit-scrollbar{
    display:none;
}
.gallery-wrap{
    display:flex;
    align-items:center;
    justify-content:center;
    margin:10% auto;
}
#backBtn, #nextBtn{
    width:50px;
    cursor:pointer;
    margin:40px;
}
.gallery div img:hover{
    filter:grayscale(0);
    cursor:pointer;
    transform:scale(1.1);

}