/* pre, pre > code, .highlight, .hljs, .codehilite {
  position: relative !important;
  overflow: hidden !important;
}
pre > code, .highlight, .hljs, .codehilite {
  position: relative;
  z-index: 1;
}
pre::after,
.highlight::after,
.hljs::after,
.codehilite::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background-repeat: repeat;
  background-size: 400px 200px;
  background-image: url("data:image/svg+xml;utf8,\
    <svg xmlns='http://www.w3.org/2000/svg' width='220' height='120'>\
      <g transform='rotate(-30 110 60)'>\
        <text x='0' y='40' font-size='18' fill='rgba(200,200,255,0.2)' font-family='sans-serif'>\
          答应我不要拍照识别了好嘛~\
        </text>\
      </g>\
    </svg>");
  /* animation: wm-move 12s linear infinite; */
  mix-blend-mode: normal;
}
/* @keyframes wm-move {
  0% { background-position: 0 0; }
  100% { background-position: 220px 120px; }
} */ */