How to Increase Input Box Size Using CSS

In this article, you will learn how to increase the size of an input box using CSS. Making input boxes larger can be beneficial when you want to improve the user experience or emphasize a particular field on your website.

Method 1: Changing Input Size with CSS #

To increase the size of an input box, you can use CSS to target the input element and adjust its width and height properties.

<style>
 .big-input {
   width: 300px;
   height: 40px;
 }
</style>
<input type="text" class="big-input" placeholder="Type here">

Explanation of the above example:

1. We define a CSS class .big-input to target the input element.
2. We set the width and height properties to increase the input box's dimensions.
3. You can adjust the values of width and height to make the input box bigger or smaller as desired.

Method 2: Using CSS Box Sizing #

Another approach is to use the box-sizing property to control the sizing behavior of the input box. This method allows you to specify the total width of the input, including padding and borders.

<style>
 .big-input {
   width: 100%;
   padding: 10px;
   box-sizing: border-box;
 }
</style>
<input type="text" class="big-input" placeholder="Type here">

Explanation :

1. We use the .big-input class to style the input element.
2. width: 100%; ensures that the input box spans the entire container width.
3. padding: 10px; adds padding to the input box, making it visually larger.
4. box-sizing: border-box; ensures that the padding and borders are included in the total width, so the input remains responsive.