Changing Column Width Based on Screen Size Using CSS

To change the column width based on screen size, use media queries. Media Queries is used when you need to set a style to different devices such as tablet, mobile, desktop, etc.

First, set the div −

<div class="sample">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Quod, maiores!</div>

Set the Initial Width

To set the width of the above div, use the width property in CSS −

.sample {
   width: 50%;
   background-color: lightblue;
   height: 200px;
   font-size: 18px;
}

Change the Column Width

Now, to change column width on the basis of screen size, set the width to 100% −

.sample {
   width: 100%;
}

When the screen size gets smaller than 700px, the width is 100% −

@media only screen and (max-width: 700px) {
   body {
      margin: 0;
      padding: 0;
   }
   .sample {
      width: 100%;
   }
}

Example

The following is the code to change the column width based on screen size −

<!DOCTYPE html>
<html>
<head>
   <style>
      body {
         font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
      }
      .sample {
         width: 50%;
         background-color: lightblue;
         height: 200px;
         font-size: 18px;
      }
      @media only screen and (max-width: 700px) {
         body {
            margin: 0;
            padding: 0;
         }
         .sample {
            width: 100%;
         }
      }
   </style>
</head>
<body>
   <h1>Changing column width based on screen size</h1>
   <div class="sample">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Quod, maiores!</div>
   <p>Resize the browser window to 700px and below to see the above div width change to 100%</p>
</body>
</html>
Updated on: 2023-10-30T14:41:32+05:30

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