Website header working improperly in Sydney theme

Hi, I am using sydney theme for website. The URL is integrity-foundation.com When I scroll down the page 3 times using arow keys then the website header is not working properly. How should I resolve this?

Hello, try to use the following CSS code.

You can add CSS code in Customize → Additional CSS section.

header#masthead.site-header {
    padding: 20px 0;
}

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.
aThemes Support

Hi, Thanks, It is working good.

Great, you are welcome!

Kind Regards, Roman.
aThemes Support