According to your screenshot, the element you want to target is called "header-lower". So just add your "background" property to the .header-lower code group in styles.css
I want to do the same but since i am using 2 languages how can i control it so when the language changes i can change the background to be the correct for that language. Thank you
I have been trying to do this in 4.10. For some reason the changes I've made to the .header-lower class are not getting updated in the browser. ( I view the source and follow the link to the styles.css ). I've tried clearing browser data, rebuilding, restarting the web server. I'm updating \Nop.Web\Themes\DefaultClean\Content\css\styles.css. Should I be updating a different file?