:root{--main-width:860px;--sidebar-width:300px}body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:1rem;font-weight:400;line-height:1.6;color:#313131;display:grid;grid-template-columns:auto minmax(auto,var(--main-width)) var(--sidebar-width) auto;grid-template-areas:". header header ." ". main sidebar ." ". footer footer .";grid-gap:4vw}header{grid-area:header}main{grid-area:main}aside{grid-area:sidebar}footer{grid-area:footer}img{height:auto;max-width:100%;vertical-align:top}#related-posts>div{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:5%}