Hi everyone,

I am reworking my site. I have a clone to try and suss the css out. I have done most of it, but the header image has a white thin line at the end of it on larger screens.

The image is uploaded as an option within the theme, I have cropped it to the correct size but somehow doesn't go fully across.

I have temporarily changed the menu background colour the same as the header so you can see the issue. I have tried using css plug in in FF but can't suss it.

Please help.

I didn't find the right solution from the Internet.

References:
https://csscreator.com/topic/help-header-wordpress
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Thank you.