:root {
  --r-background-color: #1d1d1d;
  --r-main-color: #FFFFFFE6;
  --r-link-color: #526cfe;
  --r-link-color-hover: #3957ff;
  --r-selection-background-color: #FFFFFFE6;
  --r-selection-color: #1d1d1d;
  --r-overlay-element-bg-color: 255, 255, 255;
}

.reveal h1, .reveal h2, .reveal h3,
.reveal h4, .reveal h5, .reveal h6 {
  color: #FFFFFF;
}

.reveal .slides {
  border: 1.5px #444 solid;
}

.reveal hr {
  border: 10px solid #1d1d1d;
}
.reveal .middle hr {
  background: radial-gradient(ellipse at center,rgba(120, 148, 234, 0.324) 0,hsla(0, 0%, 100%, 0) 75%);
}

.reveal-viewport.reveal-scroll .scroll-page-content {
  border: 1.5px #444 solid;
}