body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #333;
    overflow: hidden;
    margin: 0;
    font-family: Arial, sans-serif;
    flex-direction: column;
}

h1 {
    color: #f0f0f0;
    font-size: 2.5em;
    margin-bottom: 50px;
}

.eyes-container {
    display: flex;
    gap: 50px;
}

.eye {
    width: 250px;
    height: 400px;
    background-color: #f0f0f0;
    border-radius: 50% / 60% 60% 50% 50%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.pupil {
    width: 60px;
    height: 60px;
    background-color: #000;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: moveLeftRight 3s infinite alternate ease-in-out;
}

@keyframes moveLeftRight {
    0% {
        transform: translate(-150%, -50%); /* Start from far left */
    }
    100% {
        transform: translate(50%, -50%); /* Move to far right */
    }
}