index.css

html,
body {
  --bs-br: 0px !important;
  padding: 0;
  height: 100%;
  margin: 0;
  font-family: 'Courier New', Courier, monospace;
  background-color: rgb(82, 82, 82);
  overflow: hidden;
}

.tp-rotv, .tp-rotv * {
  border-radius: 0px !important;
}

#render {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;

  transform: translate(-50%, -50%);
  margin: 0;
  border-radius: 8px;
}

#pane-container {
  position: absolute;
  z-index: 9;
  background-color:hsl(230, 7%, 17%);
  color: #c8cad0;
  border: 1px solid black;
  border-radius: 8px;
  overflow: clip;
  text-align: center;
}

#pane-container-header {
  font-size: 12px;
  font-weight: 600;
  padding: 1px ;
  cursor: move;
  z-index: 10;
}