body{width:100vw;height:100vh;display:table-cell;vertical-align:middle;background:linear-gradient(to bottom,rgba(0,0,0,.3) 0%,rgba(0,0,0,.7) 75%,#000 100%),url(https://cdn.sorbonne-universite.fr/su-bg.jpg)}#forgot-password-frame{width:680px;margin:auto;background:rgba(255,255,255,.9);border:1px solid #dddada;border-radius:15px;padding:70px}.user-login{margin-left:20px}@media(max-width:690px){#forgot-password-frame{width:100%;padding:20px}}