Is there any link you are aware where i can use HTML tag creation.
to make sure that all close tags follow the corresponding open tag (yours do not), and that all open tags have matching close tags.
i didn't understand this.
It wouldn't hurt to post a picture of the web page you are serving now, and explain how the user is supposed to change latitude and/or longitude.
For this i would like to create tag name edit and view. In edit user can set value like example
Time Duration Calculator: Time between two dates/times adding 2 times. it takes data from user and gives result but i wanted if changes made it should refelect in Serial monitor.
if view button pressed . view changed data or current data.
Question is how to create tag of our own