.nav_button {
    cursor: pointer;
    padding: 14px 16px;
}

.progress_bar {
    width: 80%;
    height: 40px;
}

.nav {
    position: sticky;
    top: 0;
    background-color: black;
}

.big_button {
    cursor: pointer;
    padding: 24px 32px;
    text-align: center;
    font-size: 125%;
    background-color: hsl(116, 84%, 34%);
    border-radius: 8px;
}

.centre_div {
    text-align: center;
}

.quiz_item {
    border: 2px solid rgb(108, 95, 95);
    border-radius: 8px;
    padding: 5px;
    display: none;
}

.quiz_subitem {
    border: 1.5px solid rgb(108, 95, 95);
    border-radius: 8px;
    padding: 5px;
}

.quiz_head {
    text-align: center;
    font-size: 125%;
}

.quiz_footer {
    text-align: left;
    font-size: 75%;
}

.table_quiz {
    border-collapse: collapse;

}

.table_quiz tr {
    border: 2px solid black;
    border-style: dotted;
}

.table_quiz .col_centre {
    text-align: center;
}

.input {
    background-color: lightblue
}