Hello Ferdinand,

1.
The menu in this theme runs on Bootstrap framework. You can have the submenu shown on parent menu hover in Bootstrap by using the following jQuery code:

$(document).ready(function() { 
  var navbarToggle = '.navbar-toggle';
  $('.dropdown, .dropup').each(function() {
    var dropdown = $(this),
        dropdownToggle = $('[data-toggle="dropdown"]', dropdown),
        dropdownHoverAll = dropdownToggle.data('dropdown-hover-all') || false;
    dropdown.hover(function(){
      var notMobileMenu = $(navbarToggle).size() > 0 && $(navbarToggle).css('display') === 'none';
      if ((dropdownHoverAll == true || (dropdownHoverAll == false && notMobileMenu))) { 
        dropdownToggle.trigger('click');
      }
    })
  });
});

You can add this code to your website by using this plugin. Once you install and activate the plugin, in your Admin Panel please go to Appearance > Custom JavaScript. Paste the code. And click ‘Save & Publish’.

2.
You can achieve that by adding the following CSS code:

body.page-template-default .entry-full .entry-title {
	color: #242a33;
	font-size: 4.2rem;
	line-height: 1.5em;
	letter-spacing: .2em;
	margin-top: 9.3rem;
}

@media (min-width: 500px) and (max-width: 991px) {
	body.page-template-default .entry-full .entry-title {font-size: 3.6rem;}
}

@media (max-width: 499px) { 
	body.page-template-default .entry-full .entry-title {font-size: 2.3rem;}
}

body.page-template-default .entry-full .entry-thumb {
	height: 21.3rem;
	background-image:none!important;
}

body.page-template-default .entry-full .entry-thumb-overlay {
	display: none;
}

Insert it by using the same plugin. Only this time you want to go to Appearance > Custom CSS. Paste the code. And click ‘Save & Publish’.

5.
This text is contained in one of the content-….php files in your installation — depending on the layout you are using. You seem to be currently using the Masonry layout. So the text is in the content-masonry.php layout. Around line 121.

Please mind that if you just delete it from there, you also won’t have any text in other cases of empty queries (like when the search returns nothing, an empty tag or date archive is displayed, etc.)

To remove this text only from empty category archives, please replace this line:
<p class="text-center"><?php esc_html_e('Sorry, no posts matched your criteria', 'mauer-storyteller'); ?></p>
with this one:
<p class="text-center"><?php if (!is_category()) {esc_html_e('Sorry, no posts matched your criteria', 'mauer-storyteller');} else {esc_html_e('Empty category', 'mauer-storyteller');} ?></p>

You can change the ‘Empty category’ text to anything you want, including an empty string.

Please mind that this change will be overwritten if you update the Storyteller theme, unless you make it in a child theme.

Thank you for using Storyteller. If you enjoy the theme, I would be very grateful if you could rate it 5 stars on ThemeForest. This takes a moment and helps a lot. Thank you.

Kind regards,
Paul

Ferdinand,

I’m glad to know you managed to achieve the menu behavior you wanted. I offered you a solution based on JavaScript, and you used one based on CSS. Both work fine. I’ve tested the JS solution before posting it, and it worked. I guess you may have pasted it as CSS code or incompletely — that’s why it did not work out for you. Anyway, I’m glad to know you came up with a working CSS solution.

Thank you for using Storyteller. I would really appreciate if you could rate the theme (or the support) on ThemeForest. This really helps a lot.

Best,
Paul.