#header {
    background-color: #ffaa66;
    /* animation: pulse-head-bg 1s infinite alternate; */
}

#header:after {
    content: "dev";
    position: absolute;
    top: 0;
    right: 0;
    z-index: 10000;
    padding: 8px;
    padding: var(--textPadding);
}

body {
    background-color: #ffaa66;
    /* animation: pulse-bg 1s infinite alternate; */
}


  @keyframes pulse-bg {
    0% {
      /* background-color: #3498db;  Blue */
      background-color: #ffaa66; 
    }
    100% {
      /* background-color: #e74c3c;  Red */
      background-color: var(--color1);
    }
  }
  @keyframes pulse-head-bg {
    0% {
      /* background-color: #3498db;  Blue */
      background-color: #ffaa66; 
    }
    100% {
      /* background-color: #e74c3c;  Red */
      background-color: white;
    }
  }