.brx-boxed {max-width: 768px} .brx-boxed #brx-header.brx-sticky {max-width: 768px; margin-left: auto; margin-right: auto} html {background-color: var(--color-slate-50)} body {background: none} html {font-size: var(--text-base)} body {color: var(--color-slate-800)} h1 {font-weight: 700}