Yes that did the final job
Now everything works ok, even in chrome. Leaving the final code for some one else.
/* alinea al centro punto de sliders proyectos*/
article.type-portfolio .flex-control-nav {
width: 100%;
left: 0;
text-align: center;
padding: 2;
margin-left:4px;
}
article.type-portfolio .flex-control-nav li {
float: none;
margin-left:4px;
}
/* cambia color de punto de sliders proyectos*/
.flex-control-nav li a {
background: #ccc;
opacity: 1;
-moz-opacity: 1;
filter: alpha(opacity=100);
}
.flex-control-nav li a.flex-active, .flex-control-nav li a:hover {
background: #8c8c8c;
}
Thanks