.linksfondo-pagina { display:flex; flex-wrap: wrap; }
.linksfondo-pagina .col-link { flex-basis: 0; flex-grow: 1; max-width: 100%; position:relative;  }
.linksfondo-pagina .col-link img { width:100%; height: auto; }
.linksfondo-pagina .col-link h2 { position: absolute; bottom:40px; left:60px; color: #fff; margin:0px; font-size: 25px; line-height: 26px;}


@media screen and ( max-width:820px){

.linksfondo-pagina .col-link h2 { font-size: 20px; line-height: 22px; bottom:20px; left:20px; }
}

@media screen and ( max-width:500px){
    .linksfondo-pagina .col-link { flex-basis:100%; margin:20px;}
}