.hello {
    /*background-color: rgb(255, 255, 255);*/
    display: absolute;
    min-height: 40%;
    display: grid;
    place-items: center;
    padding-bottom: 10px;    
  }
  
  .banner {
    display: flex;
  }
  
  .panel {
    position: relative;
    width: 21px;
    height: 100px;
    overflow: hidden;
    animation: rotate 6s var(--delay) infinite ease-in-out alternate;
  }
  
  @keyframes rotate {
    0%, 10% {
      transform: rotateX(0deg);
    }
    90%, 100% {
      transform: rotateX(720deg);
    }
  }
  .panel:hover {
    transform: scale(1.5);
  }
  
  .panel::before {
    position: absolute;
    left: var(--left);
    content: "Welcome, こんにちは";
    font-size: 50px;
    width: max-content;
    color: hsl(200, 100%, 19%);
    font-family: Arial, Helvetica, sans-serif;
    
  }
  
  .panel:nth-child(1) {
    --left: 0px;
    --hue: 0;
    --delay: 0s;
  }
  
  .panel:nth-child(2) {
    --left: -21px;
    --hue: 15;
    --delay: 0.1s;
  }
  
  .panel:nth-child(3) {
    --left: -42px;
    --hue: 30;
    --delay: 0.2s;
  }
  
  .panel:nth-child(4) {
    --left: -63px;
    --hue: 45;
    --delay: 0.3s;
  }
  
  .panel:nth-child(5) {
    --left: -84px;
    --hue: 60;
    --delay: 0.4s;
  }
  
  .panel:nth-child(6) {
    --left: -105px;
    --hue: 75;
    --delay: 0.5s;
  }
  
  .panel:nth-child(7) {
    --left: -126px;
    --hue: 90;
    --delay: 0.6s;
  }
  
  .panel:nth-child(8) {
    --left: -147px;
    --hue: 105;
    --delay: 0.7s;
  }
  
  .panel:nth-child(9) {
    --left: -168px;
    --hue: 120;
    --delay: 0.8s;
  }
  
  .panel:nth-child(10) {
    --left: -189px;
    --hue: 135;
    --delay: 0.9s;
  }
  
  .panel:nth-child(11) {
    --left: -210px;
    --hue: 150;
    --delay: 1s;
  }
  
  .panel:nth-child(12) {
    --left: -231px;
    --hue: 165;
    --delay: 1.1s;
  }
  
  .panel:nth-child(13) {
    --left: -252px;
    --hue: 180;
    --delay: 1.2s;
  }
  
  .panel:nth-child(14) {
    --left: -273px;
    --hue: 195;
    --delay: 1.3s;
  }
  
  .panel:nth-child(15) {
    --left: -294px;
    --hue: 210;
    --delay: 1.4s;
  }
  
  .panel:nth-child(16) {
    --left: -315px;
    --hue: 225;
    --delay: 1.5s;
  }
  
  .panel:nth-child(17) {
    --left: -336px;
    --hue: 240;
    --delay: 1.6s;
  }
  
  .panel:nth-child(18) {
    --left: -357px;
    --hue: 255;
    --delay: 1.7s;
  }
  
  .panel:nth-child(19) {
    --left: -378px;
    --hue: 270;
    --delay: 1.8s;
  }
  
  .panel:nth-child(20) {
    --left: -399px;
    --hue: 285;
    --delay: 1.9s;
  }
  
  .panel:nth-child(21) {
    --left: -420px;
    --hue: 300;
    --delay: 2s;
  }
  
  .panel:nth-child(22) {
    --left: -441px;
    --hue: 315;
    --delay: 2.1s;
  }
  
  .panel:nth-child(23) {
    --left: -462px;
    --hue: 330;
    --delay: 2.2s;
  }
  
  .panel:nth-child(24) {
    --left: -483px;
    --hue: 345;
    --delay: 2.3s;
  }