HTML CSS examples for CSS Layout:Relative Position
Center icon without absolute or relative positioning
<html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style id="compiled-css" type="text/css"> #lightgallery a { width:calc(100% / 4); height:241px; text-decoration:none;<!--from w w w .j av a 2 s . c o m--> position:relative; } #lightgallery img { width:100%; background-image:; background-repeat:no-repeat; height:241px; object-fit:cover; } #lightgallery { display:flex; flex-wrap:wrap; margin:7.26em 0; } a[href*="youtu"]::before { font-family:'FontAwesome'; content:"!"; font-size:3.6em; position:absolute; display:flex; width:100%; height:100%; justify-content:center; align-items:center; } </style> </head> <body> <div id="lightgallery"> <a href="youtu"> <img src="https://www.java2s.com/style/demo/Safari.png" alt=""> </a> <a href="youtu"> <img src="https://www.java2s.com/style/demo/Opera.png" alt=""> </a> <a href="youtu"> <img src="https://www.java2s.com/style/demo/Opera.png" alt=""> </a> </div> </body> </html>