#triangle-right {/* margin-top: 21em;
    border-left-color: aliceblue;*/
    width: 0;
    height: 0;
    border-top: 162px solid transparent;
    border-left: 100px solid #1da3cf;
    border-bottom: 162px solid transparent;
  }

  #triangle-left {
    width: 0;
    height: 0;
    border-top: 162px solid transparent;
    border-right: 100px solid #1da3cf;
    border-bottom: 162px solid transparent;
    right:0em;
    position: absolute;
  }

  #triangle-right2 {
    position: absolute;
    margin-top: 10em;
    z-index: 0;
    width: 0;
    height: 0;
    border-top: 162px solid transparent;
    border-left: 100px solid #98e5ff85;
    border-bottom: 162px solid transparent;
  }

  #triangle-left2 {
  
    margin-top: 10em;
    z-index: 0;
    width: 0;
    height: 0;
  right: 0em;
    border-top: 162px solid transparent;
    border-right: 100px solid #98e5ff85;
    border-bottom: 162px solid transparent;
    position: absolute;
  }


  #triangle-right3 {/* margin-top: 21em;
    border-left-color: aliceblue;*/
    position: absolute;

    z-index: -1;
    width: 0;
    height: 0;
    margin-top: 21em;
    border-top: 162px solid transparent;
    border-left: 100px solid aliceblue;
    border-bottom: 162px solid transparent;
    
  }