* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  background-color: azure;
  cursor: grabbing;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100%;
  flex-wrap: wrap;
  overflow: hidden;
}

.container span {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 20px;
  min-width: 20px;
}

.container span::before {
  content: "";
  position: absolute;
  background: url(https://cdn.wallpapersafari.com/54/78/jtYEQD.jpg);
  background-position: center;
  background-attachment: fixed;
  background-size: cover;
  transition: 20s;
  opacity: 0;
  pointer-events: none;
  width: 50%;
  height: 50%;
}

.container span:hover::before {
  transition: 0s;
  opacity: 1;
  width: 1000%;
  height: 1000%;
}

/* Music control button styling */
.controls {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
}

#musicToggle {
  font-size: 24px;
  background-color: #222;
  color: white;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}