html {
  height: 100%;
}

body {
  height: 100%;
  /*background: #642B73;*/

  background: #42868a;
  /* fallback for old browsers */
  /* Chrome 10-25, Safari 5.1-6 */
 /* background: -webkit-gradient(linear, right top, left top, from(#C6426E), to(#642B73));
  background: linear-gradient(to left, #C6426E, #642B73);*/
  /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

.wrapper {
  overflow: hidden;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 670px;
  opacity: 0.4;
}

.triangle-canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 100%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}

.triangle {
  fill: none;
  stroke: #fff;
  stroke-width: 15;
  -webkit-transform-origin: center center;
          transform-origin: center center;
  -webkit-animation: triangle-animation 10s linear infinite;
          animation: triangle-animation 10s linear infinite;
}

.triangle-1 {
  -webkit-animation-delay: 0s;
          animation-delay: 0s;
}

.triangle-2 {
  -webkit-animation-delay: -0.5s;
          animation-delay: -0.5s;
}

.triangle-3 {
  -webkit-animation-delay: -1s;
          animation-delay: -1s;
}

.triangle-4 {
  -webkit-animation-delay: -1.5s;
          animation-delay: -1.5s;
}

.triangle-5 {
  -webkit-animation-delay: -2s;
          animation-delay: -2s;
}

.triangle-6 {
  -webkit-animation-delay: -2.5s;
          animation-delay: -2.5s;
}

.triangle-7 {
  -webkit-animation-delay: -3s;
          animation-delay: -3s;
}

.triangle-8 {
  -webkit-animation-delay: -3.5s;
          animation-delay: -3.5s;
}

.triangle-9 {
  -webkit-animation-delay: -4s;
          animation-delay: -4s;
}

.triangle-10 {
  -webkit-animation-delay: -4.5s;
          animation-delay: -4.5s;
}

.triangle-11 {
  -webkit-animation-delay: -5s;
          animation-delay: -5s;
}

.triangle-12 {
  -webkit-animation-delay: -5.5s;
          animation-delay: -5.5s;
}

.triangle-13 {
  -webkit-animation-delay: -6s;
          animation-delay: -6s;
}

.triangle-14 {
  -webkit-animation-delay: -6.5s;
          animation-delay: -6.5s;
}

.triangle-15 {
  -webkit-animation-delay: -7s;
          animation-delay: -7s;
}

.triangle-16 {
  -webkit-animation-delay: -7.5s;
          animation-delay: -7.5s;
}

.triangle-17 {
  -webkit-animation-delay: -8s;
          animation-delay: -8s;
}

.triangle-18 {
  -webkit-animation-delay: -8.5s;
          animation-delay: -8.5s;
}

.triangle-19 {
  -webkit-animation-delay: -9s;
          animation-delay: -9s;
}

.triangle-20 {
  -webkit-animation-delay: -9.5s;
          animation-delay: -9.5s;
}

@-webkit-keyframes triangle-animation {
  0% {
    -webkit-transform: scale(0) rotate(0deg);
            transform: scale(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(3) rotate(45deg);
            transform: scale(3) rotate(45deg);
    opacity: 0;
  }
}

@keyframes triangle-animation {
  0% {
    -webkit-transform: scale(0) rotate(0deg);
            transform: scale(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(3) rotate(45deg);
            transform: scale(3) rotate(45deg);
    opacity: 0;
  }
}