#principal {
    height: 100%;
    background-color :antiquewhite ;
    align-content :center ;
    width :96%;
}
#izquierdo {
    width: 30%;
    float: left;
    text-align :right ;
    padding-right :20px;
   
    
}
.cajatexto {
    text-align:center;
}
#derecho {
    color: white;
    float: left;
    background-color: lightblue;
    width: 60%;
    text-align: center;
    border-radius: 13px;
  clear:both ;
    
}

#imprimirfichas {
    padding-left: 40px;
}
footer {
    position: fixed;
    bottom: 0;
}

a {
    text-decoration: none;
    color :cornflowerblue ;
}