How to Create a Fixed Background Image with CSS

Use background-attachment: fixed on the element that owns the background. That anchors the image to the viewport instead of moving it with the page; combine it with an explicit fallback color, size, position and repeat rule for a dependable result.

The minimal CSS

Apply the image and attachment behavior to the element that should display it:

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body {
  background-image: url('background.jpg');
  background-attachment: fixed;
}

The image path must point to an asset your site is authorized to use. On a page that has enough content to scroll, the background remains anchored to the viewport while the document moves over it.

A practical full-viewport example

For a readable, full-page presentation, define every related property rather than relying on browser defaults:

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html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background-color: #222;
  background-image: url('background.jpg');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
  color: #fff;
}

.content {
  max-width: 70rem;
  margin: 0 auto;
  padding: 6rem 1.5rem;
}

background-color is the fallback shown while the image is loading or if it cannot be loaded. The dark color in this example also provides a base behind light text, but you still need to check contrast against the actual image crop.

What each declaration controls

Understand the attachment values

The property has three useful values. fixed positions the background relative to the viewport. It does not move with page scrolling, and on an element that has its own scrolling mechanism it still does not move with that element’s contents. When fixed is set, background-origin is ignored.

The distinction is visible only when there is content to scroll. A short box or a page that fits entirely in the viewport may make fixed and scroll appear identical.

Choose the image framing

Use cover to fill the viewport

background-size: cover scales the image until the entire box is filled, preserving its aspect ratio. Because the image and viewport rarely have the same proportions, some edges may be outside the box. Move the focal point with background-position:

body {
  background-position: 50% 30%;
  background-size: cover;
}

The first percentage controls the horizontal position and the second controls the vertical position. A value such as center top keeps a subject near the top edge; right center favors the right side.

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Use contain when the complete image matters

background-size: contain scales the image so that it is entirely visible inside the box. It preserves the aspect ratio but can leave empty bands when the box and image have different shapes. Keep a matching background-color so those bands look intentional:

.poster {
  min-height: 32rem;
  background-color: #111;
  background-image: url('poster.jpg');
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  background-attachment: fixed;
}

Prevent accidental tiling

If the image is smaller than its box and you omit background-repeat, the default tiling behavior can produce a pattern rather than a single photograph. Set no-repeat for a single image, or deliberately choose repeat-x, repeat-y or repeat for a texture.

Apply the effect to a section or component

The property belongs on the element whose background you want to paint; it does not have to be body:

.hero {
  min-height: 75vh;
  padding: 8rem 2rem;
  background-color: #263238;
  background-image: url('hero.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero__content {
  max-width: 42rem;
}

The element needs enough height for the framing and a page needs scrollable content for the fixed-versus-moving relationship to be apparent. If a parent creates a separate scrolling region, test that region specifically: fixed remains viewport-relative, while local is the value that follows an element’s own contents.

Keep foreground text readable and resilient

Do not put essential information only in the image

A CSS background is presentation. Browsers do not expose background-image as an alternative text equivalent for assistive technology. Put headings, instructions, labels and other required information in real HTML, and use the background only to support that content.

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Check contrast across every crop

A centered desktop crop may place text over a dark area while a narrow portrait crop puts the same text over a bright subject. Check the largest and smallest intended widths, both orientations and any alternate focal positions. If necessary, add a solid or translucent overlay:

.hero {
  position: relative;
  isolation: isolate;
  background-color: #222;
  background-image: url('hero.jpg');
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 35%);
  z-index: -1;
}

.hero__content {
  position: relative;
}

The color fallback remains useful even with an overlay: it preserves legibility before the image arrives and when a request fails.

Mobile browsers need device-specific testing

Broad browser support does not guarantee identical scrolling or repaint behavior on every phone. A Can I Use compatibility snapshot reports 97.26% global usage support for the fixed value; its usage-share context is attributed to StatCounter GlobalStats for August 2026. The same compatibility material identifies partial support in iOS Safari versions shown on that page, and notes that some mobile devices can delay updating the background position after scrolling.

Treat those figures as dated compatibility data, not as a promise for a particular handset. Test the mobile browsers, operating-system versions and orientations that matter to your audience. If the effect is decorative and not important on narrow screens, let the image scroll normally there:

@media (max-width: 48rem) {
  body {
    background-attachment: scroll;
  }
}

This is a graceful design choice, not a claim that the property is categorically unsupported on mobile. You can also change the image position or use a separate mobile asset if the subject is cropped out at narrow widths.

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Responsive patterns that hold up

Keep a subject visible

body {
  background-position: 65% center;
}

@media (max-width: 48rem) {
  body {
    background-position: 72% center;
  }
}

The mobile rule can move the focal point without changing the attachment behavior.

Use a deliberate section height

For a hero, use a minimum height such as min-height: 75vh rather than forcing a fixed height that can clip text when the font size or language changes. Let the content determine the final height when it needs more room.

Separate decorative and semantic images

If the picture itself conveys information, place it in an <img> with meaningful alternative text instead of relying on a background. Use the fixed background for atmosphere, texture or visual context behind semantic HTML.

Troubleshoot common failures

The image moves with the page

• Confirm the declaration is exactly background-attachment: fixed and is applied to the element that owns the background.
• Check the browser’s computed styles for a later rule that changes the value to scroll.
• Make sure there is enough page content to scroll; without scrolling, the difference cannot be seen.
• If the behavior is wrong only on a phone, compare it with the mobile media query and test the actual browser version.

The background is cropped in the wrong place

• cover intentionally crops one dimension. Adjust background-position toward the subject.
• Use contain when showing the complete image is more important than filling the box, and provide a suitable fallback color for the remaining space.
• Check portrait and landscape orientations separately; the visible crop changes with the viewport ratio.

The image repeats

Add background-repeat: no-repeat. If you are using the background shorthand elsewhere, ensure that a later shorthand is not resetting the longhand values.

Text becomes unreadable

Set a fallback color, inspect the image behind every text block at responsive widths, and add an overlay or reposition the image when contrast changes across the crop. Never depend on the picture alone to communicate required information.

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A scrollable panel behaves unexpectedly

Remember that fixed is viewport-relative. If the background should travel with the panel’s own contents, use background-attachment: local on that scrollable element and verify the result in the target browsers.

The image appears blank

• Verify the URL, filename capitalization and server response.
• Check that the stylesheet is loaded and that the element has visible dimensions.
• Look for a network or content-security-policy error in the browser developer tools.
• Keep the fallback color so a failed image request does not leave text over an undefined background.

Performance and reliability considerations

• Choose an image dimension appropriate for the largest display size and compress it before publishing. An unnecessarily large background increases transfer and decoding work.
• Prefer modern formats your supported browsers handle, while retaining the fallback color for failures.
• A fixed image that covers a long page can remain visible for the entire session; test scrolling on lower-powered phones rather than assuming desktop behavior carries over.
• Keep the focal point and contrast rules in your responsive CSS so a future image replacement does not silently hide a subject or reduce legibility.
• Use browser developer tools to inspect computed styles, network responses and the actual painted crop at each breakpoint.

A repeatable testing checklist

1. Load the page with the image request blocked and confirm the fallback color still makes the text readable.
2. Scroll a long page on desktop and verify that the background stays viewport-relative while content moves.
3. Resize through your breakpoints and inspect the focal point, crop and text contrast.
4. Test the mobile browsers and orientations that your audience uses, including the narrow-screen rule if you added one.
5. Open any independently scrolling panel and confirm whether it needs fixed, scroll or local.
6. Run keyboard and assistive-technology checks to ensure all essential information is present in HTML, not only in the image.

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Frequently Asked Questions

Is background-attachment: fixed the same as position: fixed?

No. background-attachment controls how a background image is painted; position: fixed places an actual HTML element relative to the viewport. They solve different layout problems and can be used independently.

Why did my fixed background stop working after I added a background shorthand?

The shorthand resets background sub-properties that you omit. Put background-attachment: fixed after the shorthand, or use explicit longhand declarations so the intended value remains clear.

Quick Recap

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CSS Cookbook, 3rd Edition (Animal Guide)

$39.81

Bestseller No. 2

1001W - The Rudimental Cookbook - Book & MP3

$30.00

SaleBestseller No. 3

Twelve Months of Monastery Soups: A Cookbook

Used Book in Good Condition

$11.38

Bestseller No. 4

Recipe Book to Write in Your Own Recipes, Spiral Blank Cookbook 150 Recipes

$14.98

SaleBestseller No. 5

The Essential New York Times Cookbook: The Recipes of Record

$35.00

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