.imgpopupnav {
   font-size: smaller; 
   font-family: Trebuchet, Verdana, Tahoma, Arial, Helvetica, Geneva, Sans Serif, sans-serif, Swiss, SunSans-Regular;
}

.imgdescription {
   font-size: smaller; 
   font-family: Trebuchet, Verdana, Tahoma, Arial, Helvetica, Geneva, Sans Serif, sans-serif, Swiss, SunSans-Regular;
   color: white;
   width: 95%;
}