@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,400&display=swap");
* {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}

body {
    width:   100%; 
    height: 100vh;
    display: flex;
    align-items:      center;
    justify-content:  center;
    overflow: hidden;
    background: linear-gradient(to bottom, black 70%, rgb(102, 1, 1) 85%, red);
    perspective: 1000px;
    transform-style: preserve-3d;
    font-family: "Roboto", sans-serif;
}
.containerCentral {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 100%;
  width: auto;
  margin: auto;
  transform-style: preserve-3d;
  /*transform: rotateX(1deg); */

  animation: change-color 5s alternate-reverse ease-in-out infinite;
}
#idmyCanvas {
    position: relative;
    display: block;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 18; 
    font-weight: bold;
    background: linear-gradient(#90dbe5, transparent) rgb(31, 66, 90);
    border: 1px solid rgb(69, 69, 92);
}
@media only screen and (max-width: 1100px) {
    #idmyCanvas {
      width:    900px;
      height:   480px; 
      font-size: 20;
    }
  }
@media only screen and (max-width: 900px) {
    #idmyCanvas {
      width:    780px;
      height:   480px; 
      font-size: 22; 
    }
  }
@media only screen and (max-width: 600px) {
    #idmyCanvas {
      width:    550px;
      height:   500px; 
      font-size: 24; 
    }
  }
  @media only screen and (max-width: 480px) {
    #idmyCanvas {
      width:    430px;
      height:   360px; 
      font-size: 26; 
    }
  }

  @keyframes change-color {
    0% {
      background: rgba(149, 91, 3, 0.3);
    }
    10% {
      background: rgba(255, 0, 0, 0.3);
    }
    20% {
      background: rgba(149, 91, 3, 0.3);
    }
    30% {
      background: rgba(255, 255, 0, 0.3);
    }
    40% {
      background: rgba(149, 91, 3, 0.3);
    }
    50% {
      background: rgba(0, 128, 0, 0.3);
    }
    60% {
      background: rgba(149, 91, 3, 0.3);
    }
    70% {
      background: rgba(0, 0, 255, 0.3);
    }
    80% {
      background: rgba(149, 91, 3, 0.3);
    }
    90% {
      background: rgba(149, 3, 142, 0.3);
    }
    100% {
      background: rgba(149, 91, 3, 0.3);
    }
  }