Header Image size

what theme or what plugin are you using?

https://codex.www.ads-software.com/Forum_Welcome#Include_as_much_information_as_possible

What theme?

Inspect the header image using Firebug which will display the size.

Or right click the header image using Chrome.

You can also go to Appearance > Header and check the size under Custom Header.

I am using “corp” theme . And LayerSlider WP plugin.

Thanks its resolved.