body {
    background: #000;
    color: white;
    font-family: 'Courier New', Courier, monospace;
    font-size: 150%;
    padding-top: 10px;
    padding-left: 150px;
}

a {
    color: lightblue;
    /*background: lightblue;*/
    text-decoration: none;
}

a:hover {
    background-color: green;
    color: yellow;
}

a.active {
    background-color: blue;
    color: yellow;
}

div.main_sub_menu  {
    font-size: 75%;
    margin-top: 10px;
    margin-bottom: 5px;
}

.bread_crumb {
    color: burlywood;
    font-size: 65%;
    margin-top: 10px;
}

.bread_crumb a {
    color: burlywood;
}

.bread_crumb a:hover {
    background-color: green;
    color: yellow;
}

div.top_list {
    font-size: 65%;
    line-height: 135%;
    margin-top: -10px;
}

div.calc_explanation { 
    font-size: 45%;
}

div.error {
    background-color: red;
    color: yellow;
}


/*a:visited, #ABC a:link, #ABC a:active, #ABC a:hover {
    font-family: 'Courier New', Courier, monospace
}*/