www programming

Nope Axew3. But it is alright.

I didnt want to take al your time.
The only thing i finally wants to see is that the widgets has te same some font (lettertype) as my WP theme.
But if I understand you already developing this. We talked a week or something ago about this in your forum. So i am just waiting.

Than this plugin is exactly what i was searching for.

Thanks for al your time!

these are things that can take just a second, no problem. But since are things where many times the answer depend on how the html/css code is done for the template, it is sometime necessary to see the code used on the template,to apply the correct modification and achieve the result.
All examples are working fine into twentysixteen default WP theme.

About above, strange that examples aren0t working because all are working on my tests, but this not mean that your theme can have some code that lead to not work the above code.
So to resume and give you the correct secure way:
use the example that work for you, and apply the css style to the input element, in accord with your css theme style.

Yeah i dont have a default template.

Yes thats right. But when i click on back to bakkersbaas (name of my website) i am sill logged in.

this should be cache behavior because i guess, if you after click on any link you'll be result correctly logged out. If you click back button on browser, thing that may not commonly happen to an user, you can appear as logged, because cache display the old html on page, but you are not logged, if you follow to click any link, you result as logged out. Isn't it?

about input that seem the only one work for your theme:
<input class="your class here" type="button" onclick="location.href='<?php echo wp_logout_url(); ?>'" value="<?php echo __('Logout' , 'wp-w3all-phpbb-integration' ); ?>" />
change your class in accord with theme but i've just open your site and i see that the button look ok (even not all elements are perfectly aligned, and your links on last topics are all loking like text) ... a little style more is required , the logout now work fine also?

This sounds maybe like a noob haha.

But what i have to fill in "your class here"

do not know what's noob but ok
I will do a stunning theme as i can ....

/wp-content/themes/Newspaper/style.css
This is the css style applied to your theme. I see that to all input elements the style is in same way without any class that need to be applied to the element (except if you need to space, padding, or change in another way it for some reason).
So or you add a style class into your theme file css style, and you apply this to your button, or leave as is, that is the default that come out in your theme.
For instance, if you would like to space the button with more margin or padding for example, you can do this inline or with css style.
The inline version if applied take precedence over any other style applied.
inline example: css file class example:
into your css file put something like this:
.mynicenameclass{
padding:8px;
margin:5px;
}
and into element on page to apply the class style will be: