body {
    margin: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f2f2f2;
}

.eyes-container {
    display: flex;
}

.eye {
    width: 100px;
    height: 100px;
    background-color: white;
    border-radius: 50%;
    position: relative;
    margin: 0 20px;
    border: 2px solid #333;
}

.pupil {
    width: 40px;
    height: 40px;
    background-color: darkred;
    border-radius: 50%;
    position: absolute;
    top: 30%;
    left: 30%;
    transform: translate(-30%, -30%);
    transition: transform 0.1s ease-in-out;
}