CSS Pseudo Elements

<! DOCTYPE html > < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" > < title >Document</ title > < link rel = "stylesheet" href = "style.css" > </ head > < body > < div class = "content" > < h2 class = "heading" >Welcome To CSS lorem100</ h2 > < p >Lorem ipsum dolor sit amet consectetur adipisicing elit. Ad, ipsum!</ p > < input type = "text" class = "inp" placeholder = "Enter Name" > < a href = "#one" >link1</ a > < a href = "#two" >link2</ a > < a href = "#three" >link3</ a > </ div > ...