I have the following CSS at the root of the file (to check this issue Im about to explain):
.why-choose-us-image {
width: 100%;
height: 100%;
background-position: center center;
background-size: cover;
background-repeat: no-repeat;
}
.why-choose-us-image.bg1 {
background-image: url(assets/images/bigdog.jpg);
}
And Im placing that div on a background as follows:
<div class="why-choose-us-image bg1">
</div>
But the image is not showing up. Even if I style="background-image......" the div, still not popping up on the background, but the image is there because it shows up if I insert it as an image! Super crazy.
Do you identify what am I doing wrong on the code? Thank you all.
Try this, because you should correct the address to your files
.why-choose-us-image.bg1 {
background-image: URL(../assets/images/bigdog.jpg);
}
Or this because width and height not define
.why-choose-us-image.bg1 {
height: 118px;
width: 118px;
}
I'm having the issue with website i'm currently working on, background image is not resizing for all mobile and tablet devices.
Here is website
First image after the slider won't resize correctly even if i done everything i should do. I set it as cover so it can stretch properly but even after that i have problems. I have tried with different resolutions of the picture and finally made it to be div background since i'm using WP i had to do it as raw-html option.
In css it looks like this:
.vc_row.divbgImg.row-container {
width: 100%;
height: 450px;
background-image: url(https://i.imgur.com/GlIGTxV.jpg);
background-size: cover;
background-repeat: no-repeat;
}
<div class="vc_row divbgImg row-container"></div>
Add css:
background-position: center;
https://developer.mozilla.org/en-US/docs/Web/CSS/background-position
Also make sure the actual image file has dimensions close to how it will display on the site for best results.
.vc_row.divbgImg.row-container {
width: 350px;
height: 450px;
background-image: url('http://via.placeholder.com/350x150');
background-size: cover;
background-repeat: no-repeat;
background-position: center;
}
<div class="vc_row divbgImg row-container"></div>
I'm having issues with background-attachment: fixed. When I apply it to the elements on my page it creates a very choppy scrolling effect. Essentially not something that is not a good experience for the user.
My code is here:
HTML
<div class="con row1">
<p>Some text here just to flesh out example</p>
</div>
<div class="grad-space">
</div>
<div class="con row2">
<p>Some text here just to flesh out example</p>
</div>
CSS
.con {
height: 100vh; }
.grad-space {
height: 50vh; }
.row1 {
background: url('https://s-media-cache- ak0.pinimg.com/736x/3d/88/09/3d880927ac8bfec60a04ca93064569e0.jpg') no-repeat center;
background-size: cover;
background-attachment: fixed; }
.row2 {
background: url('https://d3rt1990lpmkn.cloudfront.net/640/31762579d8fd04a756fb791ac9c3634b5828f0dd') no-repeat center;
background-size: cover;
background-attachment: fixed; }
Here's a link to the codepen showing exactly what I'm talking about:
http://codepen.io/reskk/pen/qaYJwq
Edit: Fullpage Codepen: http://codepen.io/reskk/full/qaYJwq/
Now strangely enough when I resize the browser down to a small width (say 800px) the scrolling actually becomes very smooth - just as you'd want it to appear on a finished project.
When the browser is at its max width (and max height, which you can't quite fully get on codepen due to to the code-input box) that is where the janky, choppy scrolling happens.
I've done extensive searching on this and haven't been able to find a solution.
Does anyone have any ideas on this? It's such a gorgeous effect but is unfortunately made useless by the performance it yields.
Thanks,
Reskk
You know you can see any codepen in full page? Fullpage Codepen
About your choppy effect, what you probably are looking is a scroll animation smoother, not sure if this is the right term. What it does is that delays the mouse scroll effect, or reduces "line jumps" height, making the movement look better.
CSS Parallax by davidwalsh
Edit removed frameworks/libraries references (offtopic)
I was stressing with the same problem, and found a lovely solution here: https://medium.com/vehikl-news/fixed-background-image-performance-issue-6b7d9e2dbc55
Essentially, you need to remove the background image from your .rows and move it to a :before element for each. That way you're not using background-position: fixed, but rather position: fixed on your pseudo element.
.hero {
min-height: 100%;
position: relative;
overflow: hidden;
&::before {
background-image: url('background-image.png');
background-repeat: no-repeat;
background-position: center top;
background-size: cover;
content: '';
height: 100%;
left: 0;
position: fixed;
top: 0;
width: 100%;
will-change: transform;
z-index: -1;
}
I'm looking to recreate an effect similiar to the popular science app. Basically have one big background image and then have HTML/CSS layer on top of that. When the user scrolls the content, then background-position of the image should remain in place, and not scroll.
Obviously in a 'regular' browser I would use background-attachment:fixed, but this doesn't seem to work on the ipad. I know position:fixed doesn't work as you might expect according to safari spec - but is there any way of achieving this?
You can use this code to make a fixed background layer to hack into this problem.
#background_wrap {
z-index: -1;
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background-size: 100%;
background-image: url('xx.jpg');
background-attachment: fixed;
}
And put <div id="background_wrap"></div> into <body></body>
<body>
<div id="background_wrap"></div>
</body>
Expanding on Anlai's answer above, I found that solution was repeating my image as I was scrolling rather than keeping it fixed. If anyone else had this problem my CSS for the background_wrap ID is as follows:
#background_wrap {
z-index: -1;
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background-size: cover;
background-image: url('../images/compressed/background-mobile.png');
background-repeat: no-repeat;
background-attachment: scroll;
}
Just changed the background size and background attachment to make the image static.
Mobile safari scales your whole site down to it's viewport size, including the background image. To achieve the correct effect, use the -webkit-background-size CSS property to declare your background size:
-webkit-background-size: 2650px 1440px;
(hat tip to commenter Mac)
I believe you can place the background image in a div and set the z-index to appear behind other content. Afterwards you can use javascript to fix the position of the div which contains the background image.
I'm not that profi one, but I've solved this problem usin' jquery.
It's quite simple)
Here is the code:
jQuery(window).scroll(function(){
var fromtop = jQuery(window).scrollTop();
jQuery(" your element ").css({"background-position-y": fromtop+"px"});
});
next solution in Css:
body {
background-image: url( ../images/fundobola.jpg );
background-position: top center;background-repeat:no-repeat;
background-size: 1900px 1104px;
overflow: -moz-scrollbars-vertical;
overflow-y: scroll;
}
--- not use---- (cause: scroll disable )
position: fixed
Resolved in Ipad and iPhone
Similar to Ig365, I found that Angolao's solution causes image repeat, depending on image proportions; however, Ig365's image doesn't mimic the placement of background-fixed . To do this, add a background-position-x: 50%;. (Depending on your image dimensions, you may also need background-position-y: 50%.)
#background_wrap {
z-index: -1;
position: fixed;
top: 0;
background-position-x: 50%;
height: 100%;
width: 100%;
background-size: cover;
background-image: url('imageURL');
background-repeat: no-repeat;
}
I want that my background image stretch and scale depending on the browser viewport size.
I've seen some questions on Stack Overflow that do the job, like Stretch and scale CSS background for example. It works well, but I want to place the image using background, not with an img tag.
In that one an img tag is placed, and then with CSS we tribute to the img tag.
width:100%; height:100%;
It works, but that question is a bit old, and states that in CSS 3 resizing a background image will work pretty well. I've tried this example the first one, but it didn't work out for me.
Is there a good method to do it with the background-image declaration?
CSS3 has a nice little attribute called background-size:cover.
This scales the image so that the background area is completely covered by the background image while maintaining the aspect ratio. The entire area will be covered. However, part of the image may not be visible if the width/height of the resized image is too large.
You could use the CSS3 property to do it quite nicely. It resizes to ratio so no image distortion (although it does upscale small images). Just note, it's not implemented in all browsers yet.
background-size: 100%;
Using the code I mentioned...
HTML
<div id="background">
<img src="img.jpg" class="stretch" alt="" />
</div>
CSS
#background {
width: 100%;
height: 100%;
position: fixed;
left: 0px;
top: 0px;
z-index: -1; /* Ensure div tag stays behind content; -999 might work, too. */
}
.stretch {
width:100%;
height:100%;
}
That produces the desired effect: only the content will scroll, not the background.
The background image resizes to the browser viewport for any screen size. When the content doesn't fit the browser viewport, and the user needs to scroll the page, the background image remains fixed in the viewport while the content scrolls.
With CSS 3 it seems this would be a lot easier.
CSS:
html,body {
background: url(images/bg.jpg) no-repeat center center fixed;
-webkit-background-size: cover; /* For WebKit*/
-moz-background-size: cover; /* Mozilla*/
-o-background-size: cover; /* Opera*/
background-size: cover; /* Generic*/
}
background-size: 100% 100%;
stretches the background to fill the entire element on both axes.
The following CSS part should stretch the image with all browsers.
I do this dynamically for each page. Therefore I use PHP to generate its own HTML tag for each page. All the pictures are in the 'image' folder and end with 'Bg.jpg'.
<html style="
background: url(images/'.$pic.'Bg.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'images/'.$pic.'Bg.jpg\', sizingMethod=\'scale\');
-ms-filter: \"progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'images/'.$pic.'Bg.jpg\', sizingMethod=\'scale\')\
";>
If you have only one background picture for all pages then you may remove the $pic variable, remove escaping back-slashes, adjust paths and place this code in your CSS file.
html{
background: url(images/homeBg.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='images/homeBg.jpg', sizingMethod='scale');
-ms-filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='images/homeBg', sizingMethod='scale');
}
This was tested with Internet Explorer 9, Chrome 21, and Firefox 14.
Use this CSS:
background: url('img.png') no-repeat;
background-size: 100%;
You can actually achieve the same effect as a background image with the img tag. You just have to set its z-index lower than everything else, set position:absolute and use a transparent background for every box in the foreground.
You can add this class into your CSS file.
.stretch {
background: url(images/bg.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
It works in:
Safari 3 or later
Chrome Whatever or later
Internet Explorer 9 or later
Opera 10 or later (Opera 9.5 supported background-size, but not the keywords)
Firefox 3.6 or later (Firefox 4 supports non-vendor prefixed version)
It is explained by CSS tricks: Perfect Full Page Background Image
Demo: https://css-tricks.com/examples/FullPageBackgroundImage/progressive.php
Code:
body {
background: url(images/myBackground.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
In order to scale your images appropriately based on the container size, use the following:
background-size: contain;
background-repeat: no-repeat;
I use this, and it works with all browsers:
<html>
<head>
<title>Stretched Background Image</title>
<style type="text/css">
/* Remove margins from the 'html' and 'body' tags, and ensure the page takes up full screen height. */
html, body {height:100%; margin:0; padding:0;}
/* Set the position and dimensions of the background image. */
#page-background {position:fixed; top:0; left:0; width:100%; height:100%;}
/* Specify the position and layering for the content that needs to appear in front of the background image. Must have a higher z-index value than the background image. Also add some padding to compensate for removing the margin from the 'html' and 'body' tags. */
#content {position:relative; z-index:1; padding:10px;}
</style>
<!-- The above code doesn't work in Internet Explorer 6. To address this, we use a conditional comment to specify an alternative style sheet for IE 6. -->
<!--[if IE 6]>
<style type="text/css">
html {overflow-y:hidden;}
body {overflow-y:auto;}
#page-background {position:absolute; z-index:-1;}
#content {position:static;padding:10px;}
</style>
<![endif]-->
</head>
<body>
<div id="page-background"><img src="http://www.quackit.com/pix/milford_sound/milford_sound.jpg" width="100%" height="100%" alt="Smile"></div>
<div id="content">
<h2>Stretch that Background Image!</h2>
<p>This text appears in front of the background image. This is because we've used CSS to layer the content in front of the background image. The background image will stretch to fit your browser window. You can see the image grow and shrink as you resize your browser.</p>
<p>Go on, try it - resize your browser!</p>
</div>
</body>
</html>
I wanted to center and scale a background image, without stretching it to the entire page, and I wanted the aspect ratio to be maintained. This worked for me, thanks to the variations suggested in other answers:
INLINE IMAGE: ------------------------
<div id="background">
<img src="img.jpg" class="stretch" alt="" />
</div>
CSS ----------------------------------
html {
height:100%;
}
#background {
text-align: center;
width: 100%;
height: 100%;
position: fixed;
left: 0px;
top: 0px;
z-index: -1;
}
.stretch {
margin: auto;
height:100%;
}
Thanks!
But then it was not working for the Google Chrome and Safari browsers (stretching worked, but the hight of the pictures was only 2 mm!), until someone told me what lacks:
Try to set height:auto;min-height:100%;
So change that for your height:100%; line, gives:
#### #background {
width: 100%;
height: 100%;
position: fixed;
left: 0px;
top: 0px;
z-index: -1;
}
.stretch {
width:100%;
height:auto;
min-height:100%;
}
Just before that newly added code I have this in my Drupal Tendu themes style.css:
html, body{height:100%;}
#page{background:#ffffff; height:auto !important;height:100%;min-height:100%;position:relative;}
Then I have to make a new block within Drupal with the picture while adding class=stretch:
< img alt="" class="stretch" src="pic.url" />
Just copying a picture with the editor in that Drupal block doesn't work; one has to change the editor to non-formatted text.
I agree with the image in absolute div with 100% width and height. Make sure you set 100% width and height for the body in the CSS and set margins and padding to zero. Another issue you will find with this method is that when selecting text, the selection area can sometimes encompass the background image, which has the unfortunate effect of making the full page have the selected state. You can get round this by using the user-select:none CSS rule, like so:
<html>
<head>
<style type="text/css">
html,body {
height: 100%;
width: 100%
margin: none;
padding: none;
}
#background {
width: 100%;
height: 100%;
position: fixed;
left: 0px;
top: 0px;
z-index: -99999;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-o-user-select: none;
user-select: none;
}
#background img {
width: 100%;
height: 100%;
}
#main{ z-index:10;}
</style>
</head>
<body>
<div id="main">
content here
</div>
<div id="background"><img src="bg.jpg"></div>
</body>
</html>
Again, Internet Explorer is the bad guy here, because it doesn't recognise the user-select option - not even Internet Explorer 10 preview supports it, so you have the option of either using JavaScript to prevent background image selection (for example, http://www.felgall.com/jstip35.htm ) or using CSS 3 background-stretch method.
Also, for SEO I would put the background image at the bottom of the page, but if the background image takes too long to load (that is, with a white background initially), you could move to the top of the page.
I used a combination of the background-X CSS properties to achieve the ideal scaling background image.
background-size: cover;
background-repeat: no-repeat;
background-position: center;
background-attachment: fixed;
This makes the background always cover the entire browser window and remains centered when scaling.
Use the Backstretch plugin. One could even have several images slide. It also works within containers. This way for example one could have only a portion of the background been covered with an background image.
Since even I could get it to work proves it to be an easy to use plugin :).
The following worked for me.
.back-ground {
background-image: url("../assets/background.png");
background-size: 100vw 100vh;
}
that worked to cover the entire background on different dimensions
If you want to have the content centered horizontally, use a combination like this:
background-repeat: no-repeat;
background-size: cover;
background-position: center;
This will look beautiful.
Use this CSS:
background-size: 100% 100%
You can use the border-image : yourimage property to scale the image up to the border. Even if you give the background-image, the border image will be drawn over it.
The border-image property is very useful if your style sheet is implemented somewhere which doesn't support CSS 3. If you are using Google Chrome or Firefox, then I recommend the background-size:cover property itself.
Do you want to achieve this just using one image? Because you can actually make somewhat similar to a stretching background using two images. PNG images for instance.
I've done this before, and it's not that hard. Besides, I think stretching would just harm the quality of the background. And if you add a huge image it would slow down slow computers and browsers.