h2{
    white-space: normal
}

.row{
    width:100%;
    display: flex;
    margin: 10px 0;
    text-align: center;
}

article{padding:10px;text-align: center}
article picture{
   float: none
}
#paginacion{margin:15px 0;float:left}
#paginacion a{padding:10px;color:red}