Add style to 2nd cursor


#1

TL;DR: How do i change say, color for an added cursor, but not the initial one?

I add a cursor with this

@mainEditor.addSelectionForBufferRange([[0,0],[10,0]]

I thought i would just be able to add a overlay decoration to it

@mainEditor.decorateMarker(@mainEditor.getLastCursor().getMarker(),
{type:'overlay', class:'newCursor'})

and then in my stylesheet i add

  .newCursor(@visibility: visible) {
    position: absolute;
    border: 10px solid;
    background-color: #FF0000;
    color: 	#FF0000;
    visibility: @visibility;
    opacity: 0.8;
    border-color: #FF0000;
  }

but nothing happens. I know nothing about CSS, so i may do something completely wrong here.