html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  font-family: 'Inconsolata', monospace; /* apply Inconsolata */
}

#backdrop {
  position: fixed;
  inset: 0;
  background: #f9efce;
  z-index: 0;
}

#rect-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;  
}

#content {
  padding-left: 30px;
  position: relative;
  z-index: 2;
}

.rect {
  position: absolute;
  opacity: 0.6;
  mix-blend-mode: screen; 
  will-change: transform;
}