section.dark {
  background: #222;
}

section.dark .gradient1 {
  color: #fff;
}

@supports (mix-blend-mode: lighten) {
  section.dark .gradient1 {
    display: inline-block;
    position: relative;
    color: #fff;
    background: #000;
    mix-blend-mode: lighten;
  }
  section.dark .gradient1::before {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    /* background: -webkit-gradient(linear,left top, right top,from(#23966c), color-stop(#faaa54), color-stop(#e23b4a), color-stop(#db0768), to(#360670));
    background: linear-gradient(to right,#23966c, #faaa54, #e23b4a, #db0768, #360670); */
    background: -webkit-gradient(linear,left top, right top,from(#2d85e2), to(#051521));
    background: linear-gradient(to right,#2d85e2, #051521);
    pointer-events: none;
  }
  section.dark .gradient1::before {
    mix-blend-mode: multiply;
  }
}

body {
  margin: 0;
  font-family: Muli, sans-serif;
  font-weight: 700;
  text-align: center;
  background: #222;
  padding-top: 20%;
}

.gradient1 {
  font-size: 96px;
  margin: 0.5em;
  opacity: 0.9;
}