网站变灰色
html{
-webkit-filter: grayscale(%);
-webkit-filter: grayscale();
filter: grayscale(%);
filter:url('../img/gray.svg#grayscale');
filter:gray;
}
图片变灰色
.bra_list li img{
-webkit-filter: grayscale(100%);
-webkit-filter: grayscale(1);
filter: grayscale(100%);
filter:url('../img/gray.svg#grayscale');
filter:gray;
}