.about{color:#222;max-width:900px;margin:40px auto;margin-top:calc(var(--header-height) + var(--menu-height));padding:20px;font-family:Arial,sans-serif;line-height:1.7}.about h1{font-size:2rem}.about h1,.about h2{color:#234}.about-nav{background:#f4f4f4;border-radius:8px;padding:15px}.about-section{margin-bottom:28px}.about>section>h1{font-size:.5rem}