Hi algoritmo
Settings are stored in /templates/yourtemplate/css folder/
You can override such settings using the custom.css file ( create it in the css folder )
these below are your settings for the box-contact, reducing it will reduce also the t3-copyright size
box-contact {
border-bottom: 1px solid #3a3a3a;
margin-bottom: 64px;
padding-bottom: 64px;
overflow: hidden;
}
so add to your custom.css this code
box-contact {
border-bottom: 1px solid #3a3a3a;
margin-bottom: 4px!important;
padding-bottom: 4px!important;
overflow: hidden;
}