Make header less wide

Hi,

The black background on my header is too big, how can I make this smaller (less wide)?
Sorry if this is a newbie question.

You may check picture. https://ibb.co/i8Fc97

Thanks in advance

Hello there,

To manage it, try adding the below CSS code to Appearance > Customize > Additional CSS:

.site-header,
.site-header.float-header {
  padding-top: 5px;
  padding-bottom: 5px;
} 

Regards,
Kharis

Hi,

Thanks for the answer but nothing happen when I publish it.

Kind regards

Refer to this codex page, please:

https://codex.wordpress.org/I_Make_Changes_and_Nothing_Happens

Regards,
Kharis