Develop Reference

Preventing jumps with responsive images?

I'm using the picture element with srcset so the same image but with different resolution is downloaded based on the device screen size.
It's max-width: 100% on the image's styles so when it downloads it forces the content below to move.
Is there any way to tell the browser to reserve that space using CSS when using srcset?
I'm also interested on a JavaScript answer if it's not possible.
Thanks.

You could set the image height based on the image width. So the only thing you need to know is your cameras aspect ratio. If the images have different proportions, weve got a problem...
ratio=9/16;
window.onload=window.onresize=function(){
Array.prototype.forEach.call(document.getElementsByTagName("img"),function(img){
img.height=img.width*ratio;
});
};

Responsive HTML5 Video where aspect ratio can change

I am trying to set up a HTML5 video player using video.js and Flat UI by DesignModo. I have the problem that I need to make the video player responsive, so the width needs to be 100%.
The problem is that then when this is set the height of the video is always the same as you can see in this fiddle. So what I need (I think) is a script which detects the aspect ratio as the aspect ratio will change. I found a script like that over here however it is designed for iframe videos like YouTube or Vimeo.
I attempted to modify the script by changing the value of $allVideos to $("video[class^='video-js']"), but it does not seem to have worked. Can anyone have a look at my Fiddle and try and tell me what's wrong and how to fix it?
By the way, I know that the links to the font files and image(s) are turning up 404, thats because at the moment the files are not hosted on my server, I have just been testing them locally.

Just remove the height: 100%; from .video-js .vjs-tech. And this take aspect ratio automatically from given width 100%.

What is the easiest way to create responsive Images?

I'm working on my first responsive website and I want to know how to make all of the images resize dynamically. I've worked around it for now, but I'd really like to rethink how I did this. Is there a jquery plugin for this that is easy to implement (I don't know alot of js)? Is there a better way?
My site

You actually don't need any js for this - this could be achieved with CSS alone. As you figured out from looking at the source in the link in your comments, all that's needed for dynamically resizing an image is the max-width property set to 100%. However, if you want the image to increase in size dynamically as well then you'll have to use width:100%.
See the example in this jsFiddle. You'll notice max-width does not go past the image's resolution - on the otherhand width ensures the image fills the container (which some see as a disadvantage because they lose the resolution when the width exceeds it's original).
There is a catch though, max-width property is not supported in IE6 or below - it was only introduced in IE7. This article here provides a workaround for that though.

But resizing an image through css doesn't make an image responsive.
A 200 kb image will be 200 kb when it is 1000 px wide but also when it is resized by css to 50 px wide.
I would like to see you guys' faces when waiting untill that large images is loaded on your smartphone

How did GE get this background to fix and scale?

I'm trying to get a background image to behave like GE's background on their website:
http://www.ge.com/stories/powering-gas-engines.html
I was wondering what CSS or javascript techniques they were using to get that kind of effect.

There is a jQuery plugin that can help you accomplish this, and he's laid out the code in his description to give a good idea of how it all works. What I like about this one is it also maintains aspect ratio.
http://bavotasan.com/2011/full-sizebackground-image-jquery-plugin/

it is an image, rather than a background image, and they use a javascript function called from the onresize event to set the width and/or height of it to the full width of its containing div.
It is possible to create a similar effect by using the css3 background-size property, but this is only supported in the css3 compliant browsers.

css width: 100% for both container and background image and use media queries to control minimum windows size to use elastic width or fix width

galleria javascript crops topand bootom of images when viewing in Firefox Chrome and IE

galleria javascript crops top and base of images when viewing in Firefox Chrome and IE
However in Safari this issue does not exist.
Please see the issue here
http://galleria.aino.se/media/galleria/src/themes/fullscreen/fullscreen-demo.html
no compare the squirrel image with its original
right click on any image and you will see how the script is not displaying the the full image.
We are using galleria. js full screen for a wordpress theme and all our images are the same size so there is no height issue the images we will use are 1600x900
If any one can help please advise. We need to display the entire image.
Thanks all.

I believe that's how galleria is supposed to behave. In full screen mode it fills the screen, so it will crop the top or sides, whichever extends beyond the aspect ratio of the browser window.
In full-screen mode, if you have a wide browser window, it'll crop the top/bottom. If you resize the browser window to portrait orientation, it'll crop the left/right.

You can control this behavior using the image_crop option.
F.ex if you want the image to always fit, set this to false.

Try to set in your css:
.galleria-image img {max-width:6000px !important;}
this works for me, I think there is some trouble in Safari with the attribute max-width of the image. You could use this simple trick or improve this technique adding some conditional css, so for example setting max-width to a specific value only when option "imageCrop" of galleria is set to true. Let me know if this works also for you!