WebGIS development with Geoserver, Openlayers and Postgis

Link for downloading Openlayers 6 download:
https://openlayers.org/download/

Link for downloading Layerswitcher download:
https://github.com/walkermatt/ollaye...

Link for downloading jQuery download:
https://jqueryui.com/download/all/

Link for downloading bootstrap download:
https://getbootstrap.com/docs/5.0/get...