body {
   font-family: 'Courier New', Courier, monospace !important; 
}
#content-body {
   display: inline-block;
}
.section {
   display: inline-block;
   vertical-align: top;
   width: 330px;
   height: 220px;
   padding: 10px;
   opacity: 0;
   -webkit-transition: opacity 0.5s ease-in-out;
   -moz-transition: opacity 0.5s ease-in-out;
   -o-transition: opacity 0.5s ease-in-out;
   transition: opacity 0.5s ease-in-out;
}
.fade {
   opacity: 1;
}
.nav-button {
   cursor: pointer;
   font-size: 17px;
}
a.disabled {
   pointer-events: none;
   cursor: default;
   color: blue;
   text-decoration: underline;
 }