html,body{height:100%;margin:0;padding:0;background:#f0f0f0;align-items:start;min-height:100vh}.app-container{background:linear-gradient(to bottom,#f0f0f0,#d5d5d5,#bbb);max-width:390px;width:100%;margin:0 auto;display:flex;flex-direction:column;overflow:hidden;position:relative}