html {
  position: relative;
  min-height: 100%;
}
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
}

.footer404 {
  position: absolute;
  bottom: 0;
  width: 100%;
}

/*phone*/  
@media screen and (max-width: 700px) {
	.footer {
  position: static;
}
.footer404 {
  position: absolute;
}
}