I can’t find the source of the code in the WordPress theme

I am new to WordPress. I downloaded a theme and I need to change the codes of the theme. I couldn’t find where col-lg-3 came from in the header.php.

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do_action( ‘bizzmo_before_header’ );

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I can’t find where “bizzmo_before_header” is. Not in functions.php file.

Answer

Here you find the class , you are looking for

Path:

/wp-content/themes/bizzmo/inc/custom-hooks/header-hooks.php: