So I'm still a bit new to wordpress but I'm slowly understanding the editor and css better. I have an issue with the header image for my website. I want to make the image completely cover the header but I don't have an idea how to. Did some research on google but can't seem to find it. Here is my website: slamlink.net
Also, I found an issue that my header image becomes messed up if I go on another browser like firefox. I currently use chrome and it looks fine to me but on firefox the header image is pushed to the far right.
Thanks a lot!!