 At each goal line is a set of goalposts, which consist of two "uprights" joined by a crossbar which is above the goal line.The goalposts may be H-shaped (both posts fixed in the ground) although in the higher-calibre competitions the tuning-fork design (supported by a single curved post behind the goal line, so that each post starts above the ground) is preferred.The sides of the field are marked by white sidelines, the goal line is marked in white, and white lines are drawn laterally across the field every from the goal line.