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Tryit: Using the calc() function
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<!DOCTYPE html> <html> <head> <style> #div1 { width: calc(100% - 100px); height: calc(30vh + 50px); margin: auto; border: 1px solid black; padding: 10px; } </style> </head> <body> <h2>The calc() Function</h2> <p>The width of #div1 is set to 100% minus 100px for padding. This ensures that the #div1 takes up 100% of the container's width, with an offset of 50px on each side (with margin: auto;).</p> <p>The height of #div1 is set to 30% of the height of the viewport + 50px.</p> <div id="div1">Some text...</div> </body> </html>
