body {
  background: linear-gradient(red, transparent),
    linear-gradient(to top left, lime, transparent),
    linear-gradient(to top right, blue, transparent);
  background-blend-mode: screen;
  display: flex;
  flex-direction: column-reverse;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

canvas {
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px,
    rgba(0, 0, 0, 0.22) 0px 15px 12px;
  width: 50vw;
}

/* canvas {
  height: 100vh;
} */

.githublogo > img {
  margin-top: 5vh;
  width: 42px;
  height: 42px;
}

/* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {
  canvas {
    width: 90vw;
  }
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px) {
  canvas {
    width: 90vw;
  }
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {
  canvas {
    width: 80vw;
  }
}

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {
  canvas {
    width: 70vw;
  }
}

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {
  canvas {
    width: 50vw;
  }
}