Hello,
Please goto wp-admin >>> appearance >>> customize >>> custom css >>> paste & save.
img#header_alt_logo {display: none;}
if it does not work in that case:
I would like to request temporary access (wp-admin URL and credentials) in a private reply to your site to take a better look at the issue. The information you will enter is private which means only you and I can see and have access to it.
Hi
I have fixed the isssue in your site, you can check now.
In case you want to know, below is the code which I have added to fix the issue.
Refer: http://prntscr.com/ojaqx6
Fixed: http://prntscr.com/ojbvsw