body { animation: colorChange 10s infinite; } @keyframes colorChange { 0% { background-color: #ffb6b9; /* Pastel pink */ } 25% { background-color: #ffc3a0; /* Pastel orange */ } 50% { background-color: #ffd8b5; /* Pastel peach */ } 75% { background-color: #c7ceea; /* Pastel lavender */ } 100% { background-color: #d3f8e2; /* Pastel mint */ } }