table, tr, td, th{
    border: 2px black solid;
    border-collapse: collapse;
}

.center{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
}

h1{
    text-align: center;
}

body{
    background-color: antiquewhite;
}

.naturfag{
    background-color: green;
}

.teknoforstå{
    background-color: gold;
}

.konseptutv{
    background-color: plum;
}

.yrke{
    background-color: lightcoral;
}

.engelsk{
    background-color: skyblue;
}

.matte{
    background-color: red;
}

.historie{
    background-color: darkmagenta;
}

.gym{
    background-color: olive;
}