.dw{display:flex;align-items:center;justify-content:center;height:200px;margin-top:100px}.dx{width:520px;margin:230px auto;padding:30px;border-radius:30px;box-shadow:0 4px 16px 0 rgba(0,0,0,.05)}@media screen and (max-width:639px){.dx{width:calc(100% - 32px);margin:60px auto}}