Logo and menu

Hi, first of all you need a file named functions.php in your child-theme directory. It must contain just the following code.
<?php
Once you createad and uploaded it, add the following code below <?php:

// header content wrapped
add_action('__header', 'tc_header_header_start', 0);
function tc_header_header_start(){
    echo '<div class="tc-header-container container">';
}
add_action('__header', 'tc_header_header_end', 40);
function tc_header_header_end(){
    echo '</div>';
}

The wideness of the area which contains “the three images down” is set via the css rule for the class “container”. With the code above we wrap the header content in a div with the class “container”.
Hope this helps.

Thanks, this is a big progress !!!

I use 30 instead of 40 and the menu is exactly where I wanted.
Now if I can only make logo go down on the top of the picture to be in same line with menu would be great !

No. You have to use 40, no chance.
If you use 30 you have the navbar outside of that container and a div opened inside of it which is closed outside, it’s a mess.

OK I put 40 back, but is there a way to make logo
and menu in same line like on the top of the slide ?

You can do something like:

@media screen and (min-width: 980px){
    .tc-header .navbar-wrapper{
        padding-top: 4%;
    }
}
@media screen and (min-width: 1200px){
    .tc-header .navbar-wrapper{
        padding-top: 3%;
    }
}