特殊日子全站网页自动变灰

依赖js定期自动变灰

自定义日期可酌情修改。

<script src="//cdn.staticfile.org/jquery/3.4.1/jquery.min.js"></script>
<script>
    var myDate = new Date;
    var mon = myDate.getMonth() + 1; //获取当前月
    var date = myDate.getDate(); //获取当前日
    var days=['4.4','5.12','7.7','9.9','9.18','12.13']; //在这里自定义日期
    for (var day of days) {
        var d=day.split('.');
        if (mon == d[0] && date == d[1]) {
            var gray='grayscale(100%)'; //自动变灰
            $("html,body").css({"filter":'gray !important;',"filter":"progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)","filter":gray,"-webkit-filter":gray,'-moz-filter':gray,'-ms-filter':gray,'-o-filter':gray});
            break;
        }
    }
</script>