This component is no more completely compatible with Ossn 4.x.:
Images within postings will be cut off vertically.
Without Readmore a posting containing 100 lines is 100 lines long. Wow, really? Yes! :)
WITH Readmore the posting will be truncated after 10 lines and a clickable "Readmore" appears at the bottom in order to uncollapse the hidden 90 ones.
Readmore Component for Ossn
Thanks to jeffoster for Nice Js .
If you want setup some setting check the document with below link