@keyframes idle { 100% {} }
      
      @keyframes fade-out {
        0% {
          opacity: 1;
          display: block;
        }
        
        100% {
          opacity: 0;
          display: none;
        }
      }
      
      
      #warning {
        animation: idle 1s linear infinite;
      }
      
      #stop {
        height:30vh;position:absolute;left:50%;transform:translate(-50%,0);top:10%;
      }
      
      #hold-on {
        text-align:center;width:90%;margin-left:auto;margin-right:auto;
      }
      
      @media (max-width: 800px) {
        #hold-on {
          margin-top: 50px;
        }
        #stop {
          top: 5%;
        }
      }