方法一：修改CSS文件，添加以下代碼
- html{
- -webkit-filter: grayscale(100%); /* webkit */
- -moz-filter: grayscale(100%); /*firefox*/
- -ms-filter: grayscale(100%); /*ie9*/
- -o-filter: grayscale(100%); /*opera*/
- filter: grayscale(100%);
- filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
- filter:gray; /*ie9- */
- }
方法二：修改網頁源代碼，添加以下代碼
- <style type="text/css">
- html{
- -webkit-filter: grayscale(100%); /* webkit */
- -moz-filter: grayscale(100%); /*firefox*/
- -ms-filter: grayscale(100%); /*ie9*/
- -o-filter: grayscale(100%); /*opera*/
- filter: grayscale(100%);
- filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
- filter:gray; /*ie9- */
- }
- </style>
