.link-catalogos{
   width: 470px;
   line-height: 50px;
   display: block;
   float:left;
   text-align: center;
   background:red;
   color:white;
   font-weight: bold;
   text-decoration: none;
   border: 1px solid white;
}
.link-catalogos:hover{
    background:#6699ff;
    color:white;
    font-weight: bolder;
    text-decoration: none;
}

.link-catalogos-fotografias{
   width: 100%;
   line-height: 50px;
   display: block;
   float:left;
   text-align: center;
   background:red;
   color:white;
   font-weight: bold;
   text-decoration: none;
   border: 1px solid white;
}
.link-catalogos-fotografias:hover{
    background:#6699ff;
    color:white;
    font-weight: bolder;
    text-decoration: none;
}