Add scanlines

diff --cc public/style.css
index 19f535685a4a980b89f852e664537071adfe6283,4fd08d317f371f91d495d7225482a6b9da7de278..f3dc4e3bf0163317e6bfcdad042646abd73523ca
--- 1/public/style.css
--- 2/public/style.css
+++ b/public/style.css
@@@ -11,10 -11,6 +11,25 @@@
      text-decoration: none;
  }
  
 +body::before {
++    content: "";
++    position: fixed;
++    left: 0;
++    top: 0;
++    width: calc(100% + 32px);
++    height: calc(100% + 32px);
 +    background-image: url("/scanlines.png");
++    background-position: 0 0;
++    background-position-x: 0px;
++    background-position-y: 0px;
++    background-repeat: repeat;
++    background-repeat-x: repeat;
++    background-repeat-y: repeat;
++    pointer-events: none;
++    z-index: 10000000;
++    opacity: 0.1;
 +}
 +
  body {
      display: flex;
      flex-direction: column;