html, body, #app { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(            rgba(255,255,255,0.5), rgba(255,255,255,1)
),
    url("/bg.png") center / cover no-repeat fixed;
}
.v-application { background: transparent !important; }
@media (max-width: 959px) { body { background-attachment: scroll; } }