jquery.loader.css

/* .loader
-----------------------------------------------------------------------------------------*/
.loader {
  height: 40px;
  left: 50%;
  margin: -20px 0 0 -20px;
  overflow: hidden;
  position: absolute;
  right: 0;
  top: 50%;
  width: 40px;
  z-index: 1999;
}
.loader .loader-load {
  background: #000000 url(loader.gif) no-repeat 50% 50%;
  -webkit-border-radius: 5px;
  -khtml-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  border-radius: 5px;
  cursor: pointer;
  height: 40px;
  left: 50%;
  margin: -20px 0 0 -20px;
  -webkit-opacity: 0.8;
  -khtml-opacity: 0.8;
  -moz-opacity: 0.8;
  -ms-opacity: 0.8;
  -o-opacity: 0.8;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=80)";
  filter: alpha(opacity=80);
  opacity: 0.8;
  overflow: hidden;
  position: absolute;
  top: 50%;
  width: 40px;
  z-index: 1000;
}
.loader .loader-overlay {
  background: #000;
  bottom: 0;
  display: none;
  height: 100%;
  left: 0;
  -webkit-opacity: 0.6;
  -khtml-opacity: 0.6;
  -moz-opacity: 0.6;
  -ms-opacity: 0.6;
  -o-opacity: 0.6;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=60)";
  filter: alpha(opacity=60);
  opacity: 0.6;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
}
.loader.hide {
  display: none !important;
}
.loader.overlay {
  bottom: 0;
  height: 100%;
  left: 0;
  margin: 0;
  right: 0;
  top: 0;
  width: 100%;
}
.loader.overlay .loader-overlay {
  display: block;
}