Use the step attribute to include the legal number intervals for an input field in HTML. The HTML input type step attribute sets the legal number intervals. Steps are number steps like 0, 5, 10, 15, 20, etc. The step attribute can be used together with the max and min attributes to create a range of legal values.
You can try to run the following code to implement step attribute −
<!DOCTYPE html> <html> <head> <title>HTML input step attribute</title> </head> <body> <form action = "" method = "get"> <input type = "number" name = "points" step = "5"><br> <input type = "submit" value = "Submit"> </form> </body> </html>