For changing size and margin, go to Theme Options > Header > Top of Header > Logo element
You can add any Widgets you want in Appearance > Widgets and then select it in this element to display here.
You can edit it with ease.
For displaying the specific Category or Tag go to Query tab of item editing panel.
We set to Not display posts with Featured tag. (Exclude this posts)
For displaying the specific Category or Tag go to Query tab of item editing panel.
For displaying the specific Category or Tag go to Query tab of item editing panel.
We set to display only Posts with Featured tag.
Instead Quick Contact also you can create any page and assign it.
In widgets you can find Footer 1 sidebar area and you can add your wanted widget or edit current widget.
For changing background of Footer, Go to Theme Options > Footer > Footer Widgets > Container Style Kit
For editing menu navigation settings go to Theme Options > Header > Header > Menu Element
And for styling menus go to Theme Options > Header > Header > Menu Styles of this Row