@charset "utf-8";
/* CSS Document */


body {
    background-color: #000;
    
}

a:visited {
    text-decoration: none;
    color: #fff;
}

a:link {
    text-decoration: none;
    color: #fff;
}

.course {
    margin: auto;
    width: 800px;
    height: 600px;
    background-color: #999999;
}

.top_header {
    
    width: 799.9px;
    height: 100.5px;
    background-color: #006699;

}

.t_d_logo {
    margin-left: 10px;
    padding-top: 10px;
    float: left;   
    
}

.title_ctrl{
     
     margin-left: 200px;
     padding-top: 30px;
     width: 470px;
     height: 40px;
     font-family: 'Helvetica';
     color: #fff;
     font-size: 28px;
    
}

.left_navigation {
 
    float: left;
    width: 149.65px;
    height: 470.4px;
    background-color: #cccccc;
}

.bottom_div_spacer {
    
   height: 470.95px;
}

.bottom_navigation {

    position: fixed;
    width: 799.9px;
    height: 29.55px;
    background-color: #006699;
    margin-top: 470px;
    font-family: 'Helvetica';
    
}

/*next buttons*/

._prev{
    text-decoration: none;
    color: #fff;
    margin-top: 5px;
    float: left;
    margin-left: 300px;
    
}

._next{
    margin-top: 5px;
    float: right;
    margin-right: 150px;
        
}

#btn_color{
    
    color: #fff;
}

.course_content {

    font-size: 22px;
    font-family: 'Helvetica';
    margin-top: 0px;
    height: 470px;
    width: 592px;
    position: fixed;
    margin-left: 170px;

    /*float: right;*/
    
    
}