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

body {
    background-image: linear-gradient(to right, #ffffff, #000000);
    font-family: Arial, sans-serif;
}

.container {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.box {
    text-align: center;
}

button {
    padding: 10px 20px;
    margin: 10px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    border-radius: 6px;
}

.showColorText {
    margin-top: 20px;
    cursor: pointer;
    font-size: 18px;
}