Heart Meditation

/*Downloaded from https://www.codeseek.co/the_bluescreen/heart-meditation-PamVEZ */
    html,
body {
  margin: 0;
  height: 100%;
  background: black;
  padding-top: 10px;
}
.grid-container > div {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-content: stretch;
  align-items: flex-start;
}
.grid-container {
  display: grid;
  // height: 100%;
  width: 500px;
  height: 500px;
  margin: 0 auto;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  grid-template-areas: "topleft mid-top topright" "horizontal-mid-left center horizontal-mid-right" "bottomleft mid-bottom bottomright";

  &.bordered {
    & > div {
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
  }
}
.center {
  grid-area: center;
  justify-content: center !important;
  .hearts {
    &:nth-of-type(1) {
      align-self: center;
      animation-delay: 0.2s;
    }
  }
}
.mid-top {
  grid-area: mid-top;
  .hearts {
    &:nth-of-type(1) {
      align-self: center;
      animation-delay: 1.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: center;
      animation-delay: 0.5s;
    }
  }
}
.mid-bottom {
  grid-area: mid-bottom;
  .hearts {
    &:nth-of-type(1) {
      align-self: center;
      animation-delay: 0.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: center;
      animation-delay: 1.5s;
    }
  }
}
.bottomright {
  grid-area: bottomright;
  .hearts {
    &:nth-of-type(1) {
      align-self: flex-start;
      animation-delay: 0.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: flex-end;
      animation-delay: 1.5s;
    }
  }
}
.bottomleft {
  grid-area: bottomleft;
  .hearts {
    &:nth-of-type(1) {
      align-self: flex-end;
      animation-delay: 0.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: flex-start;
      animation-delay: 1.5s;
    }
  }
}
.horizontal-mid-left {
  grid-area: horizontal-mid-left;
  flex-direction: row !important;
  .hearts {
    &:nth-of-type(1) {
      align-self: center;
      animation-delay: 1.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: center;
      animation-delay: 0.5s;
    }
  }
}
.topleft {
  grid-area: topleft;
  .hearts {
    &:nth-of-type(1) {
      animation-delay: 1.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: flex-end;
      animation-delay: 0.5s;
    }
  }
}
.topright {
  grid-area: topright;
  .hearts {
    &:nth-of-type(1) {
      align-self: flex-end;
      animation-delay: 1.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: flex-start;
      animation-delay: 0.5s;
    }
  }
}
.horizontal-mid-right {
  grid-area: horizontal-mid-right;
  flex-direction: row !important;
  .hearts {
    &:nth-of-type(1) {
      align-self: center;
      animation-delay: 0.5s;
    }
    &:nth-of-type(2) {
      align-self: center;
      animation-delay: 1s;
    }
    &:nth-of-type(3) {
      align-self: center;
      animation-delay: 1.5s;
    }
  }
}

.hearts {
  width: 10px;
  height: 10px;
  //border-radius: 5px;
  //background: white;
  text-indent: -9999px;
  animation-name: fade-in;
  animation-duration: 2.5s;
  animation-timing-function: linear;
  animation-fill-mode: both;
  animation-direction: alternate;
  animation-iteration-count: infinite;

  order: 0;
  flex: 0 1 auto;
  align-self: flex-start;

  position: relative;
  float: left;

  &.reverse {
    //background: black;
    //border: 1px solid white;

    &:before,
    &:after {
      background: black;
      border: 1px solid white;
    }
  }

  &:before,
  &:after {
    position: absolute;
    content: "";
    left: 5px;
    top: 0;
    width: 5px;
    height: 8px;
    background: white;
    border-radius: 5px 5px 0 0;
    transform: rotate(-45deg);
    transform-origin: 0 100%;
  }
  &:after {
    left: 0;
    transform: rotate(45deg);
    transform-origin: 100% 100%;
  }
}

@keyframes fade-in {
  0% {
    opacity: 0;
  }
  1000% {
    opacity: 1;
  }
}

/*Downloaded from https://www.codeseek.co/the_bluescreen/heart-meditation-PamVEZ */
    $(() => {
  $('#toggleBorder').on('click', () => {
    $('.grid-container').toggleClass('bordered');
  })
});