h2{
    width:95%;
    margin-left:auto;
    margin-right:auto;
    text-align:center;
    margin-bottom:1rem;
}
.bloque {
    width:95%;
    margin-left:auto;
    margin-right:auto;
    margin-bottom:1rem;
    font-size: 1rem;
    text-align:left;
 }
.historia {
    font-size: 1rem;
    font-weight: bold;
    text-decoration: none;
    color:blue;
    border-radius: 5px;
    border-top-left-radius: 5px;
}