background-image移動端的兼容性

不識別方位詞：top等web background-image: -webkit-linear-gradient( 0deg,#CBB9E8 0%, #9DB5FC 100%); /* Safari 5.1 - 6.0 */ background-image: -o-linear-gradient(0deg,#CBB9E8 0%, #9DB5FC 100%); /* Opera 11.1 - 1

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