We can define a fixed max-width for an element’s content box using CSS max-width property which does not allows the element’s content box to be wider even if width is greater than max-width.
Syntax
The syntax of CSS max-width property is as follows −
Selector { max-width: /*value*/ }
Let’s see an example for CSS max-width property −
Example
<!DOCTYPE html> <html> <head> <title>CSS max-width Property</title> </head> <style> * { padding: 2px; margin:5px; } button { border-radius: 10px; } #containerDiv { width:70%; margin: 0 auto; padding:20px; background-image: linear-gradient(135deg, #dc3545 0%, #9599E2 100%); text-align: center; border-radius: 10px; } #contentDiv{ max-width:200px; overflow: hidden; } </style> <body> <div id="containerDiv"> <div id="contentDiv"> This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. </div> <button onclick="add()" class="btn">Set maxWidth</button> </div> <script> function add() { document.querySelector('#contentDiv').style.maxWidth = "100%"; } </script> </body> </html>
Output
Before clicking ‘Set maxWidth’ button −
After clicking ‘Set maxWidth’ button −
Let’s see another example for the CSS max-width property −
Example
<!DOCTYPE html> <html> <head> <title>CSS max-width Property</title> </head> <style> * { padding: 2px; margin:5px; } button { border-radius: 10px; } #containerDiv { width:70%; margin: 0 auto; padding:20px; background-image: linear-gradient(135deg, #dc3545 0%, #9599E2 100%); text-align: center; border-radius: 10px; } #contentDiv1, #contentDiv2{ width:100%; border: 1px solid black; margin: 0 auto; } #contentDiv2{ width: 80%; } </style> <body> <div id="containerDiv"> <div id="contentDiv1"> This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. </div> <div id="contentDiv2"> This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy text. This is paragraph 1 with some dummy. </div> <button onclick="add()" class="btn">Set maxWidth</button> </div> <script> function add() { document.querySelector('#contentDiv1').style.maxWidth = "80%"; } </script></body></html>
Output
Before clicking ‘Set maxWidth’ button −
After clicking ‘Set maxWidth’ button −