What is the best way to have all the red boxes (see pix) aligned to the right of the containing div? No success with floats or flexbox. Trying to mimic ClickOnce app in web SPA. Here's the app.component.sccs at the moment:
#treecontainer { width: 400px; border: 5px dotted black; overflow:hidden; }
div { border: 2px solid blue; }
span { border: 3px solid green; }
span:nth-of-type(3) {border: 3px solid red; float:right;}