[CSS]图片变黑白 && 光标变色 &

img.desaturate {
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
}

input{
  caret-color: red;
}

textarea{
  white-space:pre-line/pre-wrap
}