Why we <strong> two time for a single word or line once at start and once at last of the word or line

Answer 1

Hi. The reason for having pair tags is one for an opening tag i.e. <strong> and the other is for closing this tag i.e. </strong>. Most tags are in pairs. Of course, as always, there are some exceptions, i.e. </br>. These are used to emphasize that a specific tag begins or ends. It is used in most programming languages although with different symbols, but the main idea is the same. I hope this helped.

Answer 2

all container tags like <strong> has one opening tag and one closing tag the effect is seen in the text in between them.
the tags as <strong> text </strong>.
all tag have same slash/

Answer 3

first one is opening tag and last one is closing tag
<strong>Hello aditya<\strong>