CSS: Background Grid

Easy Background Grid

.grid-overlay:before {
  content: "";
  position: fixed;
  background-color: rgba(34,102,153,0.5);

  background: -webkit-linear-gradient(skyblue 2px, transparent 2px), -webkit-linear-gradient(0, skyblue 2px, transparent 2px), -webkit-linear-gradient(skyblue 1px, transparent 1px), -webkit-linear-gradient(0, skyblue 1px, transparent 1px);
  background: -moz-linear-gradient(skyblue 2px, transparent 2px), -moz-linear-gradient(0, skyblue 2px, transparent 2px), -moz-linear-gradient(skyblue 1px, transparent 1px), -moz-linear-gradient(0, skyblue 1px, transparent 1px);
  background: -o-linear-gradient(skyblue 2px, transparent 2px), -o-linear-gradient(0, skyblue 2px, transparent 2px), -o-linear-gradient(skyblue 1px, transparent 1px), -o-linear-gradient(0, skyblue 1px, transparent 1px);
  background: -ms-linear-gradient(skyblue 2px, transparent 2px), -ms-linear-gradient(0, skyblue 2px, transparent 2px), -ms-linear-gradient(skyblue 1px, transparent 1px), -ms-linear-gradient(0, skyblue 1px, transparent 1px);
  background: linear-gradient(skyblue 2px, transparent 2px), linear-gradient(0, skyblue 2px, transparent 2px), linear-gradient(skyblue 1px, transparent 1px), linear-gradient(0, skyblue 1px, transparent 1px);

  -webkit-background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
  -moz-background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
  background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
  background-position: -2px -2px, -2px -2px, -1px -1px, -1px -1px;

  z-index: 1;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  
  opacity: .3;
  pointer-events: none;
}