What to do if background colour have to appear only till where Text ends not complete line ?

Answer 1

Paragraphs run the length of the whole line, you could wrap a <span> around the text and apply the background there

<p>
<span style="background-color: grey"> this one
</span>
</p>

Answer 2

That depends on which element has the background-color style applied to it. Post an example and someone will help you.

Answer 3

<p style={bgcolor:grey} >this one </p>

Answer 4

what actually is function of <span> tag