Hi JM,
About first "red arrow" in module, use this Custom CSS
#sp-right .sp-module .sp-module-title {margin: 0 0 10px; padding-bottom: 10px;}
About "blue arrow" there is double <br><br> that makes that space
<div class="mod-articlesnews__item" itemscope="" itemtype="schema.org/Article">
- by sharing info, old documents, photos, or suggestions
<br><br>
- by following to or liking our <a href="/www.facebook.com/industrie.lu">Facebook-page</a> and our<a href="/www.instagram.com/industrie.lu"> Instagram page</a>
<br><br>
- <a href="/component/content/article/90-industrie-lu-dvd.html?catid=85&Itemid=846">by ordering our USB stick:<img src="/im/i/90-industrie-lu-USB.jpg" alt="" width="480" height="275">
<br><br>
- by making a donation, our project is mainly funded through private support</a>
<br><br>
</div>
Next time list <ul> with <li> , not <br>