header{border-bottom:thin solid #d3d3d3;margin-bottom:1rem;padding-top:1rem;padding-bottom:1rem}section{margin-bottom:1rem}footer{border-top:thin solid #d3d3d3;margin-top:1rem;padding-top:1rem;padding-bottom:1rem}#main>div,#wheels>div{margin-bottom:1rem}#wheels .card{padding-left:0;padding-right:0}