Theme development

Hi, I tried installing two different themes (Creative Responsive Theme - https://www.drupal.org/project/creative_responsive_theme and Professional Responsive Theme - https://www.drupal.org/project/professional_responsive_theme). When I apply each of them, they work for me when I'm logged in. However, when I try to access the website while logged out, I get a "The website encountered an unexpected error.

Hello, i have a problem with my drupal 8 page. 

I have created a view with:

• Thumbnail
• Title of the object
• Media type
• Year (taxonomy)
• Link to download
• Edit link for admin

This yields a table. With also 2 filters on Media type and Year. 

So now to my problem. 

When i use it as a plain table (no grouping used) i can use NO RESULT BEHAVIOR and when i filter on a media type which the table doesn't have or a year that isnt added i get a response. 

Hi, I'm attempting to learn Drupal through the book Drupal 8: Enterprise Web Development by Nick Abbott. In Module 2 chapter 5, the book has us create and install a custom theme based on Classy. I copied and pasted the code directly from the book; however, when I did so and then set the custom theme as default, I did not see anything other than bare HTML without any CSS or JavaScript. 

The mytheme.info.yml file is:

I went to edit a View and got the message: "The server refused this request because the request header fields are too large." I had edited the View several times in the past, without this error. First, what causes the error -- and how can I fix it?

Thanks.

This might be a very simple question to answer

I have a bootstrap based theme with multiple libraries.

I need to create a page template that does NOT attach all those libraries & CSS from the theme.

I this blank page template to generate PDF files from it with an external tool, so I don't want to bring all this CSS JS, I want to stay simple.

Do I really need to create an extra blank theme for this, of there is a way to ignore all those in this particular page--pdf-base.html.twig file?

Thanks!

I've got a Views Slideshow and cannot seem to get it to be 100% of the width of the screen. I know I've done this before, but I can't seem to figure out what I'm currently missing. 

Our dev site is: http://nl-sandbox.net/

You can see the slider there at the top - it's huge. I just want it to be 100% of the width of the screen, regardless of screen size (desktop, as mobile has a different front page).