How to apply bottom border with only Input text field using CSS ? Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Adding a bottom border to the input field visually distinguishes it from surrounding elements on the page. Making input fields stand out on a website in a form for example is crucial. Styling these inputs with clear borders, appealing colors, and effects, can easily capture the user’s attention.Table of Content Using the outline and border-bottom propertiesUsing the ::after pseudo-elementUsing border-width PropertyThe border-width property in CSS is used to set the width of the border on all four sides of an element. It is a shorthand property that allows you to set the width of the top, right, bottom, and left borders. To style the border at the bottom set the property outline: 0; removes the default focus outline on the input field. Then, The border-width: 0 0 2px; sets the border width for the input field, applying a 2-pixel bottom border.Example: Illustration of the bottom border with only the Input text field using the border-width property. HTML <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content= "width=device-width, initial-scale=1.0" /> <title>Bottom border on input text field</title> <style> div { height: 100vh; display: flex; justify-content: center; align-items: center; flex-direction: column; } h1 { color: green; } input { outline: 0; border-width: 0 0 2px; border-color: green; } </style> </head> <body> <div> <h1>GeeksforGeeks</h1> <input type="text" placeholder="Enter your message.." id="geek" name="geek" /> </div> </body> </html> Output: Using the ::after pseudo-elementThe ::after pseudo-element in CSS is used to insert content after an element's actual content. It is often used for decorative purposes or to add additional styling elements. The .input-field::after, Selects the ::after pseudo-element of elements with the class .input-field. The property bottom: -2px; shifts the pseudo-element 2 pixels below the bottom edge of the .input-field container, creating the effect of a bottom border. Sets the height to 2 pixels, defining the thickness of the bottom border.Example: Illustration of the bottom border with only the Input text field using the ::after pseudo-element. HTML <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content= "width=device-width, initial-scale=1.0" /> <title>Bottom border on input text field</title> <style> .wrapper { height: 100vh; display: flex; justify-content: center; align-items: center; flex-direction: column; } h1 { color: green; } .input-field { position: relative; } .input-field::after { content: ""; position: absolute; width: 100%; height: 2px; background-color: green; bottom: -2px; left: 0; } input { border: none; outline: none; } </style> </head> <body> <div class="wrapper"> <h1>GeeksforGeeks</h1> <div class="input-field"> <input type="text" placeholder="Enter your message.." id="geek" name="geek" /> </div> </div> </body> </html> Output: Comment More infoAdvertise with us Next Article CSS Introduction R rajatsandhu2001 Follow Improve Article Tags : Web Technologies CSS Geeks Premier League CSS-Questions Geeks Premier League 2023 +1 More Similar Reads CSS Tutorial CSS stands for Cascading Style Sheets. 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