body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
}
.container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}
h2 {
    margin-bottom: 10px;
}
input {
    width: 50%;
    padding: 5px;
    font-size: 16px;
    text-align: center;
    color: rgb(36, 35, 42);
    line-height: 20px;
    min-height: 28px;
    border-radius: 4px;
    border: 2px solid transparent;
    box-shadow:
        rgb(0 0 0 / 12%) 0px 1px 3px,
        rgb(0 0 0 / 24%) 0px 1px 2px;
    background: rgb(251, 251, 251);
    transition: all 0.1s ease 0s;
    :focus {
        border: 2px solid rgb(124, 138, 255);
    }
}
button {
    display: inline-block;
    outline: none;
    cursor: pointer;
    font-size: 16px;
    line-height: 20px;
    font-weight: 600;
    border-radius: 8px;
    padding: 14px 24px;
    border: none;
    transition:
        box-shadow 0.2s ease 0s,
        -ms-transform 0.1s ease 0s,
        -webkit-transform 0.1s ease 0s,
        transform 0.1s ease 0s;
    background: linear-gradient(
        to right,
        rgb(230, 30, 77) 0%,
        rgb(227, 28, 95) 50%,
        rgb(215, 4, 102) 100%
    );
    color: #fff;
    margin-top: 10px;
}
button:hover {
    background: darkblue;
}
.output {
    margin-top: 15px;
    font-size: 18px;
}
/* quiz */
.feedback {
    margin-top: 10px;
    font-size: 18px;
}
.correct {
    color: green;
}
.wrong {
    color: red;
}