*{
  box-sizing: border-box;
}
.sm-shadow--2dp{
    -webkit-box-shadow: 0px 8px 24px rgba(13,13,18,0.04);
    box-shadow: 0px 8px 24px rgba(13,13,18,0.04);
    transition:box-shadow .5s;
}
.sm-shadow--2dp:hover{
    -webkit-box-shadow: 0px 8px 24px rgba(13,13,18,0.2);
    box-shadow: 0px 8px 24px rgba(13,13,18,0.2);
    transition:box-shadow .5s;
}

.sm-shadow--4dp{
    -webkit-box-shadow: 0px 8px 24px rgba(13,13,18,0.1);
    box-shadow: 0px 8px 24px rgba(13,13,18,0.1);
    transition:box-shadow .5s;
}