<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head> <title>CSS Test: width: calc() on blocks</title> <link href="https://dbaron.org/" rel="author" title="L. David Baron" /> <link href="http://www.w3.org/TR/css3-values/#calc-notation" rel="help" /> <link href="reference/calc-width-block-1-ref.xht" rel="match" /> <meta content="" name="flags" /> <style type="text/css"> body { width: 500px } p { background: green; color: white; margin: 1px 0; font-size: 10px } </style> </head> <body> <p style="width: calc(50% - 3px)">50% - 3px</p> <p style="width: calc(25% - 3px + 25%)">25% - 3px + 25%</p> <p style="width: calc(25% - 3px + 12.5% * 2)">25% - 3px + 12.5% * 2</p> <p style="width: calc(25% - 3px + 12.5%*2)">25% - 3px + 12.5%*2</p> <p style="width: calc(25% - 3px + 2*12.5%)">25% - 3px + 2*12.5%</p> <p style="width: calc(25% - 3px + 2 * 12.5%)">25% - 3px + 2 * 12.5%</p> <p style="width: calc(30% + 20%)">30% + 20%</p> </body></html>