* {
  margin: 0;
  box-sizing: border-box;
}

#myCanvas {
  position: fixed;
  top: 0;
  left: 0;
}

body {
  overflow-x: hidden;
  overflow-y: scroll;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar {
  display: none;
}

.full-height {
  width: 100vw;
  height: 100vh;
}

#shuffleButton {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%); 
  padding: 10px 20px;
  background-color: transparent;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  z-index: 10; /* Canvas より前面に配置 */
}

#shuffleButton:hover {
  background-color:#c6e4f1;
}

#moveToKeyButton {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%); 
  padding: 10px 20px;
  background-color: transparent;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  z-index: 10; /* Canvas より前面に配置 */
}

#moveToKeyButton:hover {
  background-color:#c6e4f1;
}