Hi Maty,
The problem is that you have added the code in the Additional HTML which is why it is displaying as it is at tge moment.
If you set the Front page to Edit then you can add your code directly into the Frontpage in the area marked with an icon that looks like this https://fontawesome.com/icons/cog?style=solid which you should see just under the heading of the Frontpage of your site.
So all you need to do is remove the Additional HTML then add your code to the Frontpage.
Cheers
Mary