header {
    width: 100%;
    height: 75px;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    background-color: #ff9600fa;
    background-repeat: repeat-x;
    text-align: center;
    transition: all 0.3s;
    display:block !important;
}

.question {font-size: 28px;margin: 58px 0;line-height: 1.4em; }

        .answers button {
            display: block;
            width: 100%;
            padding: 18px 0;
            margin: 18px 0;
            font-size: 20px;
            cursor: pointer;
            border: 1px solid #ccc;
            background-color: #f9f9f9;
            color: #000;
        }
        .answers button:hover { background:#ddd; }
        .answers button.correct {
            background-color: #4CAF50;
            color: white;
        }
        .answers button.wrong {
            background-color: #c90d00;
            color: white;
        }
        .score {
            font-size: 22px;
            margin-top: 20px;
            font-weight: bold;
            text-align: center !important;
        }

@media (max-width: 768px) {
    .answers button { padding: 26px 0;margin: 26px 0; }
    .question { font-size: 26px;margin: 24px 0; }
}