div.wrapper{width:100vw;box-sizing:border-box}nav{box-sizing:border-box;margin:0 0 25px 0}header,footer{margin:0 12.25px 0 25px;width:calc(30vw - 37.25px);box-sizing:border-box}section{width:calc(70vw - 37.25px);box-sizing:border-box;margin:0 25px 0 12.25px}h1,h2,h3,h4,h5,h6{margin:25px 0 10px}@media print, screen and (max-width: 960px){header{margin:0 25px 0 0;width:calc(100vw - 25px)}section{margin:0 25px;padding:0;width:calc(100vw - 50px)}footer{margin:0 25px;width:calc(100vw - 50px)}}