摘要：
html{ filter: grayscale(100%); -webkit-filter: grayscale(100%); -moz-filter: grayscale(100%); -ms-filter: grayscale(100%); -o-filter: grayscale(100%); filter:url("data:image/svg+xml;utf8, <svg xmlns=\'http://www.w3.org/2000/svg\'> <filter id=\'grayscale\'> <feColo 阅读全文
