.borde {
border:2px outset;
padding : 5px; 
margin : 5px;}
.yell1 {background:#ffff66}
.rosa {background:#FFEDED} 
.verdec {background: #E6FFDD}
.centrada{
position:absolute; top:30%; left:30%; width:40%; height:40%
}
.cerrar {
position:absolute;
top:2px;
right:2px
}
.grande {
font-size :1.2em; 
}