Need help with layout

My header on the pc version is blurry with the right background, so far so good. But on the mobile version it turns into white and the blurry effect is also not there anymore.

At the latest news section beneath when you go on the live and hover over the blog post pics the text inside slightly bounces and gets kinda blurry. Thats not supposed to happen.

Hope someone can help. Thanks in advance!

Here is my site Read-Only:

Here is my site Live Pulished Site: