css - Wordpress header not scaling corectly for mobile -

css - Wordpress header not scaling corectly for mobile -

i got request today help out friend of friend wordpress site. have never looked @ wordpress backend before today, agreed.

so, im stuck now. header image scaling totally wrong mobile sizing. i'm not used wordpress or experienced of coder help appreciated!

here! thanks!

so need alter line :

.header-image{ background-size : cover; }

with line :

.header-image{ background-size : 100% 100% !important; }

note: tested in mozilla browser , responsive.

css wordpress responsive-design