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为了为跨浏览器准备一个 css 级联,它看起来是这样的:
background: -moz-linear-gradient(top, rgba(200,0,0,0.22) 0%, rgba(41,137,216,0.61) 50%, rgba(32,124,202,0.62) 51%, rgba(125,185,232,1) 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(200,0,0,0.22)), color-stop(50%,rgba(41,137,216,0.61)), color-stop(51%,rgba(32,124,202,0.62)), color-stop(100%,rgba(125,185,232,1)));
background: -webkit-linear-gradient(top, rgba(200,0,0,0.22) 0%,rgba(41,137,216,0.61) 50%,rgba(32,124,202,0.62) 51%,rgba(125,185,232,1) 100%);
background: -o-linear-gradient(top, rgba(200,0,0,0.22) 0%,rgba(41,137,216,0.61) 50%,rgba(32,124,202,0.62) 51%,rgba(125,185,232,1) 100%);
background: -ms-linear-gradient(top, rgba(200,0,0,0.22) 0%,rgba(41,137,216,0.61) 50%,rgba(32,124,202,0.62) 51%,rgba(125,185,232,1) 100%);
background: linear-gradient(to bottom, rgba(200,0,0,0.22) 0%,rgba(41,137,216,0.61) 50%,rgba(32,124,202,0.62) 51%,rgba(125,185,232,1) 100%);
你会注意到双 -webkit- 声明。