:root{--white: #fff;--shadow-dark: rgba(0, 0, 0, .3);--shadow-light: rgba(255, 255, 255, .1)}body{width:100%;height:100vh;font-family:Verdana,Geneva,Tahoma,sans-serif;font-size:16px;background:url(BGpic.7218f8f730bdda25.jpg);display:flex;justify-content:center;align-items:center}