CSS Font Awesome Icon Size Not Increasing Issue and Solution

In this article, we will introduce the CSS Font Awesome icon size does not increase, and how to solve this problem.

CSS Font Awesome Icon Size Doesn’t Increase

CSS Font Awesome is a popular icon font library with a rich selection of icons, widely used in web development. However, sometimes you may encounter a problem: when you try to increase the size of a Font Awesome icon using CSS, the icon’s size doesn’t increase. Below we analyze the causes of this problem and provide several solutions.

Typically, you can change the size of Font Awesome icons by modifying the font-size property. For example, we can set font-size to 20px in CSS to resize the icon to 20 pixels. This method works in most cases, but if you encounter a situation where the icon size doesn’t increase, it could be due to the following reasons:

1. Using fixed-size class names: Font Awesome provides some predefined class names for setting icon sizes, such as fa-lg and fa-2x. If you add these class names to your icons in HTML and try to change the size using font-size in CSS, these class names will have a higher precedence, so the change to font-size will not take effect. To resolve this issue, you can modify the class names directly in the HTML, or use more specific selectors to override these class names.

Sample Code:

<i class="fa fa-user fa-lg"></i> 

2. Using a custom size class: Sometimes, you might add a custom class to a Font Awesome icon and define the style for that class in CSS. If you use a fixed font-size in this custom style, even if you change the font-size property elsewhere, it won’t apply to that icon. To solve this problem, either modify the style of the custom class directly or use a more specific selector.

Sample Code:

<i class="fa fa-user custom-icon"></i> 

.custom-icon {
font-size: 16px;
} 

3. Using SVG Icons: Font Awesome not only provides font icons, but also provides an SVG icon interface by adding the class name svg-inline--fa. If we try to modify the font-size attribute on an SVG icon, it will be invalid. The solution is to directly modify the SVG icon’s width and height attributes.

Sample code:

<svg class="svg-inline--fa fa-user fa-w-16" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="user" role="img"  viewBox="0 0 512 512" data-fa-i2svg=""> 
<path fill="currentColor" d="M256 265c73.3 0 133-59.7 133-133S329.3 0 256 0 123 59.7 123 133s59.7 133 133 133zm0 32c-97 0-176 79-176 176v16c0 13.3 10.7 24 24 24h280c13.3 0 24-10.7 24-24v-16c0-97-79-176-176-176zm0 64c-61.8 0-112-50.2-112-112S194.2 37 256 37s112 50.2 112 112-50.2 112-112 112z"></path> 
</svg> 

.svg-inline--fa { 
width: 20px; height: 20px; 
}

Through the above methods, we can resolve the issue of Font Awesome icons not resizing and achieve the desired effect. Choose the appropriate method based on your specific situation.

Read more: CSS Tutorial

Summary

In this article, we introduced the issue of CSS Font Awesome icons not resizing and addressed it by modifying class names or specific CSS properties. If you encounter the issue of icons not resizing when using Font Awesome icons, you can refer to the methods provided in this article to resolve it. We hope this article will be helpful for everyone using CSS Font Awesome.