.content {
	padding: 30px 0;
	width: 800px;
	float: Left;
    position: relative;
	background-color: #EFF;
	background-color: var(--color-light-00);
}
.content h1 {
    text-align: center;
    margin-top: 6px;
    margin-bottom: 0;}
.content h2 {
    text-align: center;
    margin-top: 2px;
    margin-bottom: 16px;
    font-size: 30px;}
.content p {
    padding-top: 10px;
    text-align: justify;}
.content ul, .content ol { 
	padding: 0 15px 15px 40px; }

/*Set a table structure by a div for a row containing 4 divs of columns.*/
.table-row {
    background-color: #0FF;
    background-color: /*var(--color-light-80)*/ var(--color-light-70);
    display: table;
    margin: 40px auto 20px auto;
    width: 720px; 
    table-layout: fixed; /*Optional*/

    border: 1px solid #077;
    border: 1px solid var(--color-dark-40);}
.col-exam, .col-ver, .col-ans, .col-mat {
	float: left;
    position: relative;
    overflow: hidden;} 
.col-exam {width: 79px;}
.col-ver {width: 99px;}
.col-ans {width: 102px;}
.col-mat {width: 440px; float: right;}

/*Put buttons in the columns*/
.col-mat .btn-short, .col-mat .btn-tall {
    text-align: left;
    padding-left: 8px;}
.btn-head, .btn-short, .btn-tall {
    width: 100%;
    font-size: 18px;
    text-align: center;
    padding: 0;
    display: inline-block;
    cursor: auto;
    border: 2px solid #0FF;
    border: 2px solid var(--color-light-70) /*var(--color-light-80)*/;
    color: #044;
    color: var(--color-dark-10);
    border-style: inset;}
.col-exam .btn-tall {font-weight: bold;}
.col-exam .btn-tall, .col-mat .btn-short, .col-mat .btn-tall {
    background-color: #DFF;
    background-color: var(--color-light-20);
    pointer-events: none;}
.btn-head {
    height: 65px;
	background-color: #088;
	background-color: var(--color-dark-50);
    color: white;
    font-weight: bold;
    text-align: center;    
    pointer-events: none;}
.col-ver .btn-head {padding-top: 8px;}
.col-mat {text-align: left;display: table;/*position: re*/}
.btn-tall {height: 80px;}
.btn-short {height: 40px;}

.col-ver .btn-short, .col-ver .btn-tall, .col-ans .btn-tall  {
    cursor: pointer;
    border-width: 3px;
    border-radius : 10px;
    border-style: inset;
    background-color: white;}

.col-ver .btn-short:hover, .col-ver .btn-tall:hover, .col-ans .btn-tall:hover {
    color: white;
    background-color: #066;
    background-color: var(--color-dark-30);}