h2
{
    padding-left: 50px;
    font-weight:normal;
}

h2::before
{
    content:"Q : ";
    font-weight:bold;
}

input[type=submit]
{
    font-size:20px;
    font-weight: bold;
    cursor:pointer;
}

table
{
    width:100%;
    border-collapse: collapse;
}

td
{
    border:solid 1px black;
    text-align:center;
}

td.question
{
    width:50vw;
    height:30vh;
}

img
{
    max-height:100%;
    max-width:100%;
}

td.correction
{
    height:25vh;
    width:50vw;
    font-size: 16px;
}

td.correction img
{
    max-height:100%;
    max-width:100%;
}

div.hidden
{
    display:none;
    position:absolute;
    overflow:auto;
    background-color:rgb(154, 196, 220);
    border:outset 3px #c1c1c1;
    height:30vh;
    width:30vw;
    top:20vh;
    text-align:left;
    padding:10px;
}

span.display-hidden:hover div.hidden
{
    display:block;
}