不用圖片 靠CSS也能背景漸層!

background: -ms-linear-gradient(top, #FFF 0%,#81D8D0 100%); /* IE10+ */
background: -webkit-linear-gradient(top, #FFF 0%,#81D8D0 100%); /* Chrome10+,Safari5.1+ */
background: -moz-linear-gradient(top, #FFF 0%, #81D8D0 100%); /* FF3.6+ */