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background-image: linear-gradient(top, #ffff00 0%, #00ff00 50%, #00ff00 100%);
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #ffff00), color-stop(0.5, #00ff00), color-stop(1, #00ff00));
background-image: -moz-linear-gradient(top, #ffff00 0%, #00ff00 50%, #00ff00 100%);
background-image: -o-linear-gradient(top, #ffff00 0%, #00ff00 50%, #00ff00 100%);
background-image: -ms-linear-gradient(top, #ffff00 0%, #00ff00 50%, #00ff00 100%);
