We can define a fixed min-height for an element’s content box using CSS min-height property which does not allows the element’s content box to be smaller even if height is lesser than min-height.
Syntax
The syntax of CSS min-height property is as follows −
Selector { min-height: /*value*/ }
Example
Let’s see an example for CSS min-height property −
<!DOCTYPE html> <html> <head> <title>CSS min-height 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{ min-height:150px; } </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 minHeight</button> </div> <script> function add() { document.querySelector('#contentDiv').style.minHeight = "100px"; } </script> </body> </html>
Output
Following is the output for above code −
Before clicking ‘Set minHeight’ button −
After clicking ‘Set minHeight’ button −
Example
Let’s see another example for the CSS min-height property −
<!DOCTYPE html> <html> <head> <title>CSS min-height 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:50%; border: 2px solid black; margin: 0 auto; } </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 minHeight</button> </div> <script> function add() { document.querySelector('#contentDiv1').style.minHeight = "95px"; } </script> </body> </html>
Output
Following is the output for above code −
Before clicking ‘Set minHeight’ button −
After clicking ‘Set minHeight’ button −