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

body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: yellowgreen;
    text-align: center;
}

.form {
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, .8);
    border-radius: 10px;
    margin: 10px;
}

.input {
    display: block;
    padding: 10px;
    width: 100%;
    border-radius: 10px;
    margin: 10px 0;
    border: 2px solid #ddd;
    outline: none;
    text-align: center;
    color: green;
}

.btn {
    display: inline-block;
    border: none;
    padding: 10px;
    border-radius: 10px;
    width: 100%;
    margin: 10px 0;
    background-color: green;
    color: #fff;
    cursor: pointer;
}

.score {
    text-align: right;
    margin-bottom: 10px;
}