What does a holding position marker consist of, what does it look like, and what are the meanings?

4 yellow lines in total 2 solid yellow lines (if the aircraft is on this side of the marker it is still considered to be on hold and on the Taxiway) 2 dashed yellow lines (Once an aircraft crosses the 2 solid yellow lines and is on/past the dashed yellow lines, it is considered to be on the runway)