background: fixed no repeat not working on mobile-第2页回答

I am building a webpage where I want the background image to scale to fit the whole screen, maintain aspect ratio and be fixed (so if you scroll down, the background image stays in the same place).

I have achieved this in desktop browsers with the CSS below, but it doesn't work on an iPhone or iPad. On those devices the background is too big (it continues below the fold) and if you scroll down far enough, the image will start repeating. Anyone have a fix? THanks!

HTML {
  background: url(photos/2452.jpg) no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

标签： html ios css mobile safari

14条回答

The star\"

2楼-- · 2019-01-04 00:35

I have found a great solution for fixed backgrounds on mobile devices requiring no JavaScript at all.

body:before {
  content: "";
  display: block;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: -10;
  background: url(photos/2452.jpg) no-repeat center center;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

Please be aware of the negative z-index value of -10. html root element default z-index is 0. This value must be the smallest z-index to have it as background.

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放荡不羁爱自由

3楼-- · 2019-01-04 00:37

I think that mobile devices dont work with fixed positions. You should try with some js plugin like skrollr.js (for example). With this kind of plugin you can select the position of your div (or whatever) in function of scrollbar position.

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Ridiculous、

4楼-- · 2019-01-04 00:37

I'm late to the party, but this is (unbelievably) still a problem as of the 11.05.2017. Here is a simple solution which will also work cross-platform with linear gradients:

.backgroundFixed {
  background: linear-gradient(160deg, #2db4a8 0%, #13af3d 100%);
  background-size: 100vw 100vh;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  z-index: -1000;
}

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>title</title>
  </head>
  <body>
    <div class="backgroundFixed"></div>
    <div class="paragraphContainer">
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
      <p>We're here to make the body scroll</p>
    </div>
  </body>
</html>

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霸刀☆藐视天下

5楼-- · 2019-01-04 00:39

I've been having the same problem, but now it works. All I had to do was add background-size: cover !important; and it works on my Android device!

The entire code looks like this:

body.page-id-8 #art-main {
  background: #000000 url("link to image") !important;
  background-repeat: no-repeat !important;
  background-position: 50% 50% !important;
  background-attachment: fixed !important;
  background-color: transparent !important;
  background-size: cover !important;
}

Thanks a lot @taylan derinbay and @Vincent!

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贪生不怕死

6楼-- · 2019-01-04 00:40

"background-size: cover;" causes a lot of issues on all mobile browsers except Firefox!

This fixed my issue:

/* Mobile first */
body{
    background-image: url(bg_mobile.jpg);
    background-attachment: fixed;
    background-repeat: no-repeat;
}

/* Then tablets, laptops and desktops (768px and up) */
@media screen and (min-width:768px) {
body{
    background-image: url(bg.jpg);
    background-size: cover;
    }
}

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我命由我不由天

7楼-- · 2019-01-04 00:40

Found a perfect solution for the problem 100% working on mobile as well as desktop

https://codepen.io/mrinaljain/pen/YObgEP

.jpx-is-wrapper {
    display: block;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    z-index: 314749261;
    width: 100vw;
    height: 300px
}

.jpx-is-wrapper>.jpx-is-container {
    background-color: transparent;
    border: 0;
    box-sizing: content-box;
    clip: rect(auto auto auto auto);
    color: black;
    left: 0;
    margin: 0 auto;
    overflow: visible;
    position: absolute;
    text-align: left;
    top: 0;
    visibility: visible;
    width: 100%;
    z-index: auto;
    height: 300px
}

.jpx-is-wrapper>.jpx-is-container>.jpx-is-content {
    left: 0;
    overflow: hidden;
    right: 0;
    top: 0;
    visibility: visible;
    width: 100%;
    position: relative;
    height: 300px;
    display: block
}

.jpx-is-wrapper>.jpx-is-container>.jpx-is-content>.jpx-is-ad {
    -webkit-box-shadow: rgba(0,0,0,0.65) 0 0 4px 2px;
    -moz-box-shadow: rgba(0,0,0,0.65) 0 0 4px 2px;
    box-shadow: rgba(0,0,0,0.65) 0 0 4px 2px;
    bottom: 26px;
    left: 0;
    margin: 0 auto;
    right: 0;
    text-align: center;
    height: 588px;
    top: 49px;
    bottom: auto;
    -webkit-transform: translateZ(0);
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -o-transform: translateZ(0);
    transform: translateZ(0)
}

.jpx-position-fixed {
    position: fixed
}

.jpx-is-wrapper>.jpx-is-container>.jpx-is-content>.jpx-is-ad>.jpx-is-ad-frame {
    width: 100%;
    height: 100%
}

.black-fader {
    position: absolute;
    z-index: 1;
    width: 100%;
    height: 100%;
    opacity: 0.75
}

.video-containers {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0
}

.video-containers video,.video-containers img {
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%)
}

<p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p>

<div class="jpx-is-wrapper">
                       <div class="jpx-is-container">
                          <div class="jpx-is-content">
                             <div class="jpx-is-ad jpx-position-fixed">
                                   <div scrolling="no" width="100%" height="100%" class="jcl-wrapper" style="border: 0px; display: block; width: 100%; height: 100%;">
                                       <div class="video-containers" id="video-container">
                                          <img src="https://via.placeholder.com/350x150" alt="" class="">
                                       </div>
                                  </div>
                             </div>
                          </div>
                       </div>
                    </div>

<p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p><p>Salman's arrest has created a wave of tension in Bollywood because of all his projects that were lined up, especially his most awaited film.</p>

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background: fixed no repeat not working on mobile

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