Dear,
1. To change Post Job button link, please install and switch your site to use Jobmonster Child theme, then add custom code in Jobmonster Child theme's file functions.php
add_filter('noo_post_job_btn', function(){
$link = 'YOUR_LINK';
return '<li id="nav-menu-item-post-btn" class="menu-item-post-btn"><a href="' . $link . '">' . jm_get_button_text() . '</a></li>';
});
Change YOUR_LINK to link you want add
2. To change Post Job text font, please add custom CSS code on your site, eg:
#nav-menu-item-post-btn > a {
font-family: Helvetica !important;
}
3. To change logo size, please add custom CSS code on your site
.navbar-brand .noo-logo-img, .navbar-brand .noo-logo-retina-img {
height: auto;
max-height: none;
width: 220px;
}
Best regards.