@import url('https://fonts.googleapis.com/css2?family=Mulish:ital,wght@0,200..1000;1,200..1000&display=swap');  
body {background: #000; font-family: Arial, sans-serif; color: #fff; font-size: 15px; line-height: 24px;}

.logo { width: 100%; max-width: 640px; display: block; padding: 38vh 20px; margin: auto;}
.logo img {width: 100%; display: block; }
footer {font-size: 15px; opacity: 0.5; text-align: center; padding: 20px;}