html { font-size: 100%; line-height: 1.5; height: 100%;} body { position: relative; margin: 0;  height:100vh; background-color: #FFF; color: #1e83ec;} h1{color:#FFF}#vCenterBlock { position: relative; top: 50%; transform: perspective(1px) translateY(-50%);}.img-circle { border-radius: 50%;  } #alertInscription{ }.cpin{ display: inline-block; width: 4.5rem !important; border: 1px solid #ced4da !important; border-radius: .25rem !important; padding: 0 !important; text-align: center;}