.gallery-three img{height:300px}
.gallery-three img:first-child{grid-row:span 2;height:618px}
@media(max-width:900px){.gallery-three img,.gallery-three img:first-child{height:320px;grid-row:auto}}
@media(max-width:540px){.gallery-three img,.gallery-three img:first-child{height:250px}}
.second-instructor{background:#202020;border-top:1px solid #444}
.second-instructor img{object-position:center 35%}