Repositioning background image on smaller width screen - html

I'm not a seasoned web developer and am quickly hacking up something for fun. I have a web page that has an 1024 x 768 background image (I know that's probably a bad idea) that I can correctly centre if the browser width increases. However, when the browser width decreases below 768px, I want the image to be "centered" along with the width rather than just tacking the top left corner so that the centre of the image is always in line with the other elements on the page.
What kind of CSS magic can pull this off?
Here's my CSS:
body
{
background: #000000; /*Black bg for extra space not covered by img*/
font-family: sans-serif;
margin: 0px;
}
.wrap
{
background: url(../images/background.jpg) no-repeat;
background-attachment:fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
margin: auto;
/*Stretch body all the way to edges*/
/*width: 1024px; /*Min width for site*/
}
Thanks.

follow tutorials for responsive :
http://stephen.io/mediaqueries/
http://webdesignerwall.com/tutorials/responsive-design-in-3-steps

Take a look at this website
The CSS shown here in the "Awesome, Easy, Progressive CSS3 Way" is almost as the code you have. what you need to change to center the image horizontal and vertical is adding "center center" to the background settings:
.wrap{
background: url(../images/background.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
margin: auto;
}

Have you tried :
background-size: 100% 100%;
along with all your other css. This will ensure that the background image that you are using will stretch to fit the screen size(height and width-wise)

Related

Responsive Background

I am trying to make a background image of the particles JS responsible. Thus I used this code:
#particles-js {
margin: 0;
padding: 0;
width:100% ;
height: 100%;
background-image: image-url("rub.jpg");
background-repeat:no-repeat;
-webkit-background-size:cover;
-moz-background-size:cover;
-o-background-size:cover;
background-size:cover;
}
but when I resize my browser I get this result:
Which in my opinion is too small in height. I used the image background-size: cover because it is what is recommended to make the background image responsive but it does not fit well.
My question is if it depends on the original size of the image or I am doing something wrong? and if there is any specific way to make the background really responsive? In other words to make the image background fit the maximum height and width of the screen of the the different mobile devices?
See if this helps: http://codepen.io/panchroma/pen/ggMYBQ
The key detail is to apply the background image to an element that covers the full height of the screen, eg html
CSS
html{
background:url(https://images.unsplash.com/photo-1440804518589-c0bbe09a8103) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}

Background Image not following cover rule

My background image is scaling down as the window width decreases. I want the image to be full image regardless of the display. How would I implement that? The following code scales the image, then starts only show a section.
header {
position: relative;
width: 100%;
min-height: auto;
text-align: center;
color: #fff;
background-image: url(../img/header.jpg);
background-position: center !important;
background-size: cover;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
}
If I'm reading your question right, simply set your header width to the width of the image.
If you are trying to full width background image for your header(Hero Header).
Try these code examples.
Demo Link

CSS-Background focused no matter resolution of browser

Right now when you go to this link:http://rawgallery.us/user/login
the background is cut off. It should look like this picture no matter the resolution of the browser window: http://rawgallery.us/CarlisleBackDropWallRoom.png
I am still learning CSS, so I used this code that was suppose to cover the background everywhere, which works :
html {
background: url("CarlisleBackDropWallRoom.png") no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
my #page is setup like this:
#page {
margin-left: auto;
margin-right: auto;
min-height:960px;
min-width:960px;
max-height:1200px;
max-width:1200px;
}
Does the html tag override the page tag?
Can someone tell me how I can view the whole background image if the browser window is 500x700 or 1200x1500 for example?
Thanks!
You may prefer background-size:contain, which fits the background image into its container rather than attempting to cover both width and height of the container.
From the MDN docs:
["contain"] specifies that the background image should be scaled to be
as large as possible while ensuring both its dimensions are less than
or equal to the corresponding dimensions of the background positioning
area.
Here's the CSS:
html {
background: url("/sites/default/files/imgs/CarlisleBackDropWallRoom.png") no-repeat center center fixed;
-webkit-background-size: contain;
-moz-background-size: contain;
-o-background-size: contain;
background-size: contain;
}
Here is a working example.
Please note the browser compatibility of background-size.

How to keep the body (content) of website alligned with the center of background image

I'm trying to keep my site's content perfectly aligned with the center of its background image, is there a way to do this?
Currently my background is
body {
background: url(http://nickhumphries.com/images/tucson-bgl3b2.jpg) no-repeat center center fixed;
background-color: #fafafa;
-webkit-background-size: 100%;
-moz-background-size: 100%;
-o-background-size: 100%;
background-size: 100%;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
text-align:center;
}
#mainContainer {
margin:0 auto;
}
you don't need text align center in your body since you are using divs over it. and you should probably use #maincontainer as a class .maincontainer so you can reuse it seperately.
And why are you using 100% size and cover at the same time? you can either resize it to cover or keep it at 100% right?
Play with these ideas.
usually if i want to center something, i give it a fixed width and set margins left and right to auto

How to make full screen background in a web page

How to make an image as background for web page, regardless of the screen size displaying this web page? I want to display it properly. How?
its very simple
use this css (replace image.jpg with your background image)
body{height:100%;
width:100%;
background-image:url(image.jpg);/*your background image*/
background-repeat:no-repeat;/*we want to have one single image not a repeated one*/
background-size:cover;/*this sets the image to fullscreen covering the whole screen*/
/*css hack for ie*/
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.image.jpg',sizingMethod='scale');
-ms-filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.jpg',sizingMethod='scale')";
}
um why not just set an image to the bottom layer and forgo all the annoyances
<img src='yourmom.png' style='position:fixed;top:0px;left:0px;width:100%;height:100%;z-index:-1;'>
Via jQuery plugins ;)
http://srobbin.com/jquery-plugins/backstretch/
http://buildinternet.com/project/supersized/
Use this CSS to make full screen backgound in a web page.
body {
margin:0;
padding:0;
background:url("https://static.vecteezy.com/system/resources/previews/000/106/719/original/vector-abstract-blue-wave-background.jpg") no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
Use the following code in your CSS
html {
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;
}
here's the link where i found it:
Make a div 100% wide and 100% high. Then set a background image.
A quick search for keywords background generator shows this CSS3 produced background pattern that's dynamically created.
By keeping the image small and repeatable, you won't have problems with it loading on mobile devices and the small image file-size takes care of memory concerns.
Here's the markup for the head section:
<style type="text/css">
body {
background-image:url('path/to/your/image/background.png');
width: 100%;
height: 100%;
}
</style>
If your going to use an image of something that should preserve aspect ratio, such as people or objects, then you don't want 100% for width and height since that will stretch the image out of proportion. Instead check out this quick tutorial that shows different methods for applying background images using CSS.
CSS
.bbg {
/* The image used */
background-image: url('...');
/* Full height */
height: 100%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
HTML
<!doctype html>
<html class="h-100">
.
.
.
<body class="bbg">
</body>
.
.
.
</html>
I have followed this tutorial: https://css-tricks.com/perfect-full-page-background-image/
Specifically, the first Demo was the one that helped me out a lot!
CSS
{
background: url(images/bg.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
this might help!
I found the reason why there is always a white boder of the background image, if I put the image in a 'div' element inside 'body'.
But the image can be full screen, if I put it as background image of 'body'.
Because the default 'margin' of 'body' is not zero.
After add this css, the background image can be full screen even I put it in 'div'.
body {
margin: 0px;
}