4月4日网站变灰记录

基本都是通过 grayscale 来实现的
都不支持 IE 11
但在 IE 11 的情况下表现却各不相同
B站、A站、淘宝、京东、百度、虎扑、开源中国

B 站

html.gray{-webkit-filter:grayscale(.95)}

image-20200404231148322.png

image-20200404231208890.png

A站

html .gray {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
  filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
    -webkit-filter: grey;
    filter: gray;
}

有多浏览器前缀考虑
实际上无法用 ie11 打开网站
不过和 B 站一样，去除无关内容，值得称赞

image-20200404231309976.png

image-20200404231242170.png

淘宝

html{-webkit-filter: grayscale(100%);       filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);}

image-20200404231605925.png

image-20200404231611053.png

京东

/* 一段控制灰色失效的 JS 代码 */
$html.toggleClass('o2_gray', isDuringDate('2020/04/04 00:00:00', '2020/04/04 23:59:59'))

html.o2_gray {
      -webkit-filter: grayscale(100%);
   filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
    }

可部分加载分类条目
但内容无法加载

image-20200404231429511.png

image-20200404231408461.png

百度

@font-face{font-family:cIconfont;src:url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-a37745d6f3.eot);src:url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-a37745d6f3.eot?#iefix) format('embedded-opentype'),url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-b021b3a4c4.woff2) format('woff2'),url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-2a209a281f.woff) format('woff'),url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-37639e7474.ttf) format('truetype'),url(https://dss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/font/iconfont-475b0dc226.svg#iconfont) format('svg')}
body.qm-activity #head_wrapper,body.qm-activity #s_menu_gurd,body.qm-activity #u1,body.qm-activity #u_sp,body.qm-activity .s-ctner-menus .s-menu-item-underline,body.qm-activity .s-news-rank-content,body.qm-activity .s-news-wrapper .s-news-list-wrapper .hot-point,body.qm-activity .s-news-wrapper .s-news-list-wrapper:nth-child(-n+3) img.s-news-img,body.qm-activity .s-top-left.s-isindex-wrap{filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);-webkit-filter:grayscale(100%);-moz-filter:grayscale(100%);-ms-filter:grayscale(100%);-o-filter:grayscale(100%);filter:grayscale(100%);filter:gray}

image-20200404230127672.png

image-20200404230827306.png

虎扑

<html style="filter: grayscale(100%);>
</html>

image-20200404230925407.png

image-20200404231024051.png

开源中国

body {
  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\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
  filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
  -webkit-filter: grayscale(1);
}