*{margin: 0; padding: 0; box-sizing: border-box;}
body{
    width: 100%;
    background-color: black;
    display: flex;
    justify-content: center;
}
.stonediffuser{
    width: 50%;
}
.stonediffuser img{
    width: 100%;
    object-fit: cover;
}
@media (max-width:425px){
    .stonediffuser{
        width: 100%;
    }
}