h2,h3{font-weight:600}main section:first-child h1,main section:first-child h2,main section:first-child h3{text-align:center}h2{font-size:26px}h3{font-size:20px}h4{font-size:18px;font-weight:500}#available{border:2px solid green;background-color:green;color:#fff;padding:6px 24px;font-size:16px;font-weight:700;margin-top:24px}#available:hover{background-color:#fff;color:green}