.body_index{
  background-color:#568976;
  text-align: center;
}
.body_skalarni{
  background-color:#3399FF;
  text-align: center;
}
.body_vektorski{
  background-color:#9900FF;
  text-align: center;
}
.table_index{
  width:80%; 
  margin-left: auto; 
  margin-right: auto;   
  background-color:#66FFCC;
}
.table_skalarni{
  width:60%; 
  margin-left:auto; 
  margin-right:auto;   
  background-color:33FFFF;
}
.table_vektorski{
  width:60%; 
  margin-left:auto; 
  margin-right:auto;   
  background-color:#CC99FF;
}
.button{
  text-align:center;
}
a:link {color:#000000;} 
a:visited {color:#000000;} 
a:hover {color:#000000;} 
a:active {color:#000000;} 

a.showHide{
  text-decoration: none;
}