I have been using the timeline_item add function with content field to represent the element with a image. It works fine.
timeline_items.add({
id : entity_id,
group : "timeline_group_id",
start : start_date,
end : end_date,
content : "<img src='" + element_src_link + "'></img>",
className : 'timeline-imagecontainer',
});
However, although I explicitly define a className, that does not help with the style properties of the image.
I want to have a repeating background with the img inside the timeline element.
How can I achieve this ?