css blur bg with code examples

CSS is the powerful tool that adds interactive features and style to a website's HTML. It makes the website design more professional and attractive to audiences, which increases the site's popularity and user experience. One of the ways to enhance the visual appeal of websites is to use the CSS blur background effect. In this article, we'll walk you through how to achieve a CSS blur background and provide examples of the technique in action.

What is CSS Blur Background?

CSS Blur Background is a commonly used technique to create a background image that appears softened or out of focus. It is a visual effect that can provide depth and add texture, making the website visually more appealing. The blur creates a subtle effect that is particularly effective for promoting webpage content while maintaining the background's presence.

There are different ways to achieve the blur effect depending on the desired outcome. One of the common methods is to use the backdrop-filter CSS property. It supports the 'blur' and 'saturate' filter functions that allow you to blur an element background image or color while preserving its borders.

The process is simple; First, we add an element to the HTML, which we will apply the background image to, and then use the backdrop-filter CSS property to add the blur effect.

Let's write some code examples to understand the process better.

Example 1: CSS Blur Background using Backdrop-filter Property

<!-- HTML Code -->
<div class="background"></div>

/* CSS Code */
.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('path/to/image.jpg') no-repeat center center fixed;
  background-size: cover;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

In the example above, we added a div element to the HTML, which we'll add a background image to. To apply the Blur Background effect, we set the background property to the path of the desired image. The background-size cover value is used to stretch the background image to the full width and height of the browser viewport.

We then used the backdrop-filter property to apply the blur effect. The '10px' value specifies the intensity of the blur effect. Additionally, as Internet Explorer does not support the backdrop-filter property, we added -webkit vendor prefixes to include support for Safari.

Example 2: CSS Blur Background using Box-shadow Property

Another approach to create a blur background is by using the CSS box-shadow property. The disadvantage of this method is that it doesn't support the 'saturate' filter, which makes the color of the image stand out more.

/* HTML Code */
<div class="background"></div>

/* CSS Code */
.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('path/to/image.jpg') no-repeat center center fixed;
  background-size: cover;
  overflow: hidden;
  box-shadow: inset 0 0 150px 140px rgba(0,0,0,0.7);
}

In this example, we also added a div element to the HTML, which we'll add a background image to. The box-shadow property is then used to add the blur effect, with 'inset' indicating that the shadow should be applied to the inside of the element.

We set the size of the box-shadow to 150px and 140px for the blur effect. Finally, we set the rgba color value to the desired background color.

Although the box-shadow method is simple and works with older browsers, it offers less flexibility in creating full-blown blurred backgrounds compared to the backdrop-filter property method.

Conclusion

CSS Blur Background is an effective way to add depth and textural detail to website backgrounds. Using the backdrop-filter CSS property, web designers can create beautiful backgrounds with ease, providing an excellent user experience.

In this article, we've provided some code examples of the two methods of creating a Blur Background using the backdrop-filter and box-shadow properties. We hope this article helps you achieve stunning website designs and enhances your website's user interface, which leads to increased user engagement.

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Popular questions

Certainly, here are five questions and answers about CSS blur background with code examples:

  1. What is CSS blur background?

A: CSS blur background is a styling technique that makes the background of an element appear out of focus or blurred. It can be used to add depth, texture and visual interest to website designs.

  1. What CSS property is commonly used to create a blur background effect?

A: The backdrop-filter CSS property is commonly used to create a blur background effect. It supports the 'blur' and 'saturate' filter functions that allow designers to blur an element background image or color while preserving its borders.

  1. How do you use the backdrop-filter CSS property to blur a background image?

A: To use the backdrop-filter CSS property to blur a background image, you add the 'background-image' property to the element, set its value to the path of the desired image, and then use the 'backdrop-filter' property with the 'blur' function to add the blur effect. For example:

.background {
background-image: url(background-image.jpg);
backdrop-filter: blur(10px);
}

  1. What alternative CSS property can be used to create a blur background effect?

A: The CSS 'box-shadow' property can also be used to create a blur background effect. However, it doesn't support the 'saturate' filter function, which can make the color of the image stand out more.

  1. What is the difference between using the backdrop-filter and box-shadow properties to create a blur background effect?

A: The primary difference between using the backdrop-filter and box-shadow properties to create a blur background effect is the level of flexibility they offer. The backdrop-filter property offers more flexibility and control over the blur effect than the box-shadow property. However, the box-shadow property is a simpler and more widely supported solution that also works with older browsers.

Tag

Blurry

Cloud Computing and DevOps Engineering have always been my driving passions, energizing me with enthusiasm and a desire to stay at the forefront of technological innovation. I take great pleasure in innovating and devising workarounds for complex problems. Drawing on over 8 years of professional experience in the IT industry, with a focus on Cloud Computing and DevOps Engineering, I have a track record of success in designing and implementing complex infrastructure projects from diverse perspectives, and devising strategies that have significantly increased revenue. I am currently seeking a challenging position where I can leverage my competencies in a professional manner that maximizes productivity and exceeds expectations.
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