body {
    background-color: #ddd;
}

.student_info {
    font-size: 25px;
}

.student_info span {
    padding: 5px;
}

.question_list .que_op{
    font-size: 25px;
    font-family: Arial, Helvetica, sans-serif;
    border-bottom: 3px dotted #fff;   
    padding: 15px 5px 15px 5px;
    margin: 15px 0 15px 0;
}

.que_op .option li label img{
    border: 2px solid #fff;
    padding: 4px;
    border-radius: 15px;
    margin-bottom: 10px;
    width: 60%;
}

.que_op img{
    border: 2px solid #fff;
    padding: 4px;
    border-radius: 15px;
    margin-bottom: 10px;
    width: 40%;
}


.que_op .quelist_i{
    margin: 15px 5px 15px 5px;
}

.que_op .option li label{
    cursor: pointer;
}

.que_op .option li label img,.que_op img {
    min-width: 50%;
    min-height: auto;
}

.que_op .option li label input[type="radio"]{
    width: 20px;
    height: 20px;
    margin-right: 5px;
}

.que_op .option li {
    padding: 5px 5px 5px 5px;
}

.que_op .option li:hover {
    background-color: darkgrey;
    border-radius: 15px;
}

.chinese-list {
    counter-reset: list-number;
    list-style: none;
}

.chinese-list li.que_op {
    counter-increment: list-number;
    position: relative;
}

.chinese-list li.que_op::before {
    content: counter(list-number, cjk-ideographic) ". ";
    position: absolute;
    left: -1rem;
}


@media (max-width:780px) {
    .que_op .option li label img,.que_op img {
        min-width: 50%;
        min-height: auto;
    }
}