Codepen primarily concentrates on front-end languages such as HTML, CSS, and JavaScript, as well as the preprocessing syntaxes that transform them.
CodePen ສຸມໃສ່ຕົ້ນຕໍກ່ຽວກັບພາສາທາງ ຫນ້າ ເຊັ່ນ: HTML, CSS, JavaScript, ແລະ syntaxes ທີ່ຖືກປັບປຸງກ່ອນທີ່ຈະກາຍເປັນສິ່ງເຫຼົ່ານັ້ນ.