Best size for Website Logo
Website logo or Banner
I'm not really sure what its called but on Twenty Seventeen theme, there is the image of 2 pots on a wooden table.
I think its called a Header Logo or is it called a Header Banner?
Either way, I want to make a similar banner/graphic that goes across the top of my website but where can I find the best dimensions required to do that?
Keep it mobile-friendly
And how do I ensure it remains mobile friendly?
I have created a banner in Canva a few times using some text and a background, but I really need to know the best size (or at least the width), as they always appear a bit small on the screen.