I'm trying to make the image on my site to display 100% height but crop width as needed. On PC the site works as intented as can be seen below:
However when I check the site with my phone it displays the whole image distorting it.
HTML:
<header class="wide">
</header>
CSS:
body, html {
height: 100%;
}
.wide {
width: 100%;
height: 100%;
background-image: url('sebastian-unrau-42537-unsplash.jpg');
background-size: cover;
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
}
#media (max-width: 1199.98px) {
.wide {
background-attachment: scroll;
background-position: initial;
}
}
The media query is mandatory as the image doesn't work at all if the background-image is fixed and centered.
Now if I remove "background-size: cover":
It's kind of closer what I'm after but not quite. Am i missing something?
My PC is running Chrome 66.0.3359.117 and my phone 65.0.3325.109
Ok I figured it out by accident. I was using an image from Unsplash.com and the the original resolution is 6000x4000. As I was making a Codepen project to post here I resized the image and wondered why it worked on codepen but not on my pc. Well it seems the resolution needs to be about 5500x3667 or smaller to work.
Maybe there is a limitation I did not know of but anyway got it working now. I didn't change anything else.
You could use this property :
background-size: x% y%;
The first value is the horizontal position and the second value is the vertical.
So you can try :
background-size: auto 100%;
I've searched just about every string of words possible to try and find a solution to this issue and have had no luck. Here's the code I have for the header:
/* MAIN HEADER */
.header {
background-image: url(../images/kt-header2.jpg);
background-repeat: no-repeat;
background-size: 100%;
background-position: fixed;
background-size: cover;
margin: 0;
padding-top: 0em;
padding-bottom: 5em;
overflow: hidden;
width: 100%;
height: auto;
width: auto\9; /* ie8 */
}
This is what the header img looks like when the browser is smaller.
This is what it looks like when the browser is larger.
For all I know, this is a mess and the solution is obvious. I've been trying to piece things together with no previous knowledge of css, so I'm flying blind here.
I have linked a recreation of the code as a comment under the first comment on this post. Because I am a new user, I can't put more than 2 links in this post.
Did you try to add a set height to the header? If you add the set height, it won't be overcome by the other elements on a larger browser
I added: .header{height: 100px;) (used another image)
https://jsfiddle.net/toolbox3/8Lbdx2fm/
I have a background image of a paper airplane on the body tag of this page: http://cogo.goodfolk.co.nz. The very tip of it is being cut off - if you resize the browser window the full image pops back in.
It's only happening in Chrome, and isn't consistent, if you refresh sometimes, or even hover over sometimes it's fine. If I remove all the background styles (background position and no-repeat) then the whole image is there - but of course isn't positioned correctly. It's also happening on other pages of my website (eg http://cogo.goodfolk.co.nz/online-surveying).
After days of debugging/searching I can't find anything that refers to this issue and/or fixes it - is it possibly a Chrome bug with background-position?
Any ideas or workarounds? Thank you!
//EDITED//
The relevant code is pasted below, although obviously this is pretty standard so it must be something else in the site that's causing the problem:
.home {
background: url("../img/airplane.jpg") no-repeat center;
background-size: 70%;
background-position: 10% 98%;
}
The background image is set to center, so this is expected behaviour, depending on window size. You could change this CSS declaration from:
.home {
background: url("../img/airplane.jpg") no-repeat center;
background-size: 70%;
}
To:
.home {
background: url("../img/airplane.jpg") no-repeat center top;
background-size: 70%;
}
This would anchor the image to the top of the screen, meaning it would not clip, but this may not be the behaviour you are looking for.
To complicate matters, you also have this, which is probably contributing to the problem. I would suggest removing it entirely:
#media (min-width: 1200px)
.home {
background-position: 20% -10%;
}
Yay thanks to everyone who left suggestions, fortunately I've figured out a workaround! I managed to pretty much keep the background styles the same, and just placed everything in a :before pseudo element on the body tag. You can check out the updated code at cogo.goodfolk.co.nz if you're interested, or it's pasted here:
.home {
position: relative;
min-height: 860px;
}
.home:before {
content: "";
position: absolute;
width: 100%;
height: 100%;
background: url("../img/airplane.jpg") no-repeat center;
background-size: 70%;
background-position: 50% 15%;
}
Set the display to "inline-table".
the weirdest thing just happened, I had a problem I fixed with the footer and I accidently left the %sign after contain in my code. Take a look. My site is usahvacsupply.com
html, body{
overflow:auto;
margin: auto;
background-image:url('/images/Testing1/bg2.jpg');
background-repeat: no-repeat;
background-position:top center;
-moz-background-size:100% 100%;
-webkit-background-size:100% 100%;
background-size:contain%;
top: 0;
left: 0;
}
Without the % sign after contain it throws everything off. The % only satisfies for firefox though. Does anyone know a fix for all browsers? IE the % helps but throws off the top level navigation tabs. In chrome it is all out of wack. I'm pretty much baffled here so help would be appreciated.
Well, you have different background-position rules for the different prefixes.
If you'd like to use 'contain' as a value, try removing the % and then follow suit with the other rules.
-moz-background-size: contain;
-webkit-background-size: contain;
background-size: contain;
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.