Full CSS3 Gradients including IE filters and old webkit

gradient.css

.el {
  background-color: #000;
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#bbb', endColorstr='#000');
  background-image: -webkit-gradient(linear, left top, left bottom, from(#bbb), to(#000));
  background-image: -webkit-linear-gradient(top, #bbb, #000);
  background-image: -moz-linear-gradient(top, #bbb, #000);
  background-image: -ms-linear-gradient(top, #bbb, #000);
  background-image: -o-linear-gradient(top, #bbb, #000);
  background-image: linear-gradient(top, #bbb, #000);
}