About slider for led brightness control?

hello i,m new to this mit app. i wanna ask slider also works with ap web server for esp8266 or only works with bluetooth ? because i watched many videos on youtube all they are using bluetooht code for arduino but there is nothing about esp8266 ap web server. i also tried to make silder app for led brightness control but failed. all tutorial in videos are for bluetooth but not for esp8266 ap websever. help will be appreciated. my english is weak but i hope you guys could understand me.

There are plenty of topics about using an esp8266 on the community.