Where does CSS code need to be placed in order for it to work?

Question

Suppose you want to use CSS code to style your page: p {color:blue;} .

Answer 1

You can use by 3 ways. Internal css external css and inline css. https://www.sololearn.com/learn/CSS/1079/

Answer 2

For eg:-
In the HTML part you wrote -
<p> I am HTML </p>
--------------------------------------------
CSS/you can also access the CSS code in your HTML inside the <style> </style> tag

body{
}
p{
color : blue ;
}

So this will colour your text I am HTML to blue

//I really can't understand your question to properly but this is what according to me I can do.

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Answer 3

<style>
p {color:blue;}
</style>

Answer 4

Best way external write your css code save file.Css in html write in head tag <link rel="stylesheet" type="text/css" href="your file.css">