moar_rheinbows.css

.aplus   {
    /* fallback */
    background-color: #90B0F0;
    /* chrome 2+, safari 4+; multiple color stops */
    background-image:-webkit-gradient(linear, left bottom, left top, color-stop(0.00, red), color-stop(0.16, orange), color-stop(0.32, yellow) color-stop(0.48, green), color-stop(0.60, blue), color-stop(0.76, indigo), color-stop(1, purple));
    /* chrome 10+, safari 5.1+ */
    background-image:-webkit-linear-gradient(red, orange, yellow, green, blue, indigo, purple);
    /* firefox; multiple color stops */
    background-image:-moz-linear-gradient(top, red, orange, yellow, green, blue, indigo, purple);
    /* ie10 */
    background-image: -ms-linear-gradient(red, orange, yellow, green, blue, indigo, purple);
    /* opera 11.1 */
    background-image: -o-linear-gradient(red, orange, yellow, green, blue, indigo, purple);
    /* The "standard" */
    background-image: linear-gradient(red, orange, yellow, green, blue, indigo, purple);
}