Draw a line between two divs or elements in JS or Jquery

English Course planning where students can plan courses by moving shapes that represents courses, which are connected by arrows that represent prerequisites. Each arrow must move along with the shape. As shown in the img attached below, there are arrows that connect to some classes. There is a file named project that contains the shapes with classes but it's missing the lines that connects each classes with their prerequisites. Espanol Estamos trabajando en un projecto de fin de curso el cual trata sobre crear una pagina web que visualize un plan de estudio de los 4 años de universidad. Tenemos hecho la tabla y los cuadros de los cursos que se deben tomar. Sin embargo, estamos teniendo problemas para agregar las lineas que se conectan con los cursos que muestran que ciertas clases tienen prerequisito.