A .png badge on the border between color sections

Hey Matjaz,
Thank you for your patience and thanks for the link to your site, although I didn’t see a link to your badge. Anyways the way this is done is by placing your Trip advisor badge code in the lower color section and using a negative top margin to move it up.
When I check your site the top and bottom color sections are using the same custom ID: tour-detail-section please note that you should ensure that any ID is only used once on any page.
I made a mockup of your page to demonstrate another approach using css if you only want to add the image and no link, in that case this css would work as long as there are no duplicate custom IDs:

#tour-detail-section:before {
    background-image: url('https://your-site.com/wp-content/uploads/2021/05/top-rated-trip-advisor.png');
    background-size: 120px 100px;
    display: inline-block;
    width: 120px; 
    height: 100px;
    content:"";
    float:right;
    margin-right:30%;
    margin-top: -50px;
}

You would need to adjust the url to the image.

Best regards,
Mike