Centering Div On Page - Get The Height And Width Of The Div Element?
Jun 4, 2009
I have the following DIV, that I need to position in the center of the page, I have the following code, but you can see the div is not exactly center, space I have from the top is not the same I have in the bottom, the space I have from bot side is the same.I was wandering also if I can do this dynamically, meaning the div will receive the width and height in run time, and them I will send the values to my method "centerObj" (How I can get the height and width of the div element.
How can I change the height and width of an element with Javascript? I have tried and so far I can only change either the width or height but not both, doing something like this…
Code:
<HTML> <HEAD> <script type = "text/javascript"> function changeSize(){document.getElementById('test').style.height = '200'}
[code]....
And this works fine but if I try to change both height and width it doesn’t work. Doing something like this doesn’t work
Code:
function changeSize(){document.getElementById('test').style.height = '200' width=’200’}
I'm having an issue getting the height and width of DIV elements that have resized themselves to fit their content.
Note: I do not have a problem getting the height and width of DIV elements that I have set using Javascript. The probel is that this value appears to stick. I.e. the height is set to 150px, then the content is changed and the DIV cosumes as much height as is required (clearly more than 150px), however analysing the DOM indicates that the height is the same (though it is clearly not).
I want to know how to get hold of the 'actual' size of a DIV element that is manipulated by the content of the DIV.
I am also interested in a solution that works in IE and Firefox (at least).
i am using jquery to detect picture width and height in a page. if the size exceeds a specified value, then a maximum size will be assigned to the <img > attribute.
this jquery is run with $(window).load, because when $(document).ready the pictures may not be loaded and the script may fail
this theory is good. however, if the internet speed is slow, or the picture link is dead, user would have to wait for a long long time before the jquery executes.
is there any way to do the resizing job wisely? for example, resize each picture once each of the pictures is loaded?
I've written a small plugin to serve as a feature rotator and am having one strange problem.You can see some demos of the plugin and documentation here:
http://pbskids.org/pbskidswidgets/carousel.html.The plugin does a number of things that involve reading the width and height of DOM elements and using them to set the width and height of other elements. The problem is that sometimes in Firefox and Safari, when the page loads, the widths and heights of panels in the carousel are fracked.
Reload the page and the problem's fixed. In Safari, I can't get it to happen again on many reloads. In Firefox, though, if I reload repeatedly, I can get the problem to happen again: maybe once every seven or eight times.It looks like something's happening with page loading, but I'm at a loss to diagnose it further: is the script firing before the elements have fully loaded sometimes, and then works on subsequent tries because those elements are in the cache? Also: I've never seen this error in any of the IE versions.
I've set up jcarousel and configured it to work how I need it to, apart from one thing; I need the images to keep their width - height ratio when the browser is resized.
I'm using the Flexible carousel configuration and the width of the images changes appropriately when the window is resized, but the height stays the same, I need it to change.
I didn't see this as an option, so I decided to give it a try on my own. I was able to add some lines of code (shown with the > in the margin below) to the jquery.cycle.js script to read in the width of each image and center the slide within the slideshow container // set position and zIndex on all the slides
Trying to get the height of an element whose height is specified in the CSS.
So I am trying to animate the height of an item, where I have: <img id="myButton" src="myimage.jpg" /> <div id="myDiv" style="height:50px;overflow:hidden"> asdklf
[Code]....
However, it only registers as 50, even if the element is 500
I have absolutely positioned left-aligned elements that I'm attempting to center with javascript.The page briefly shifts to the left when the page is loaded before it centers the page.(I realize that this goal could be achieved with CSS alone but I am hoping for a cure for this javascript solution for now.)The javascript that I'm using is common.js, the onload command is positionPage(); and the div is DivLayout.I don't know if I need to adjust the div, javascript or both.how I can correct the shifting issue?Here is the link to view my issue: http:/tiny.cc/test176
Below is the javascript code: window.onresize=positionPage; String.prototype.trim = function() { return this.replace(/^s+|s+$/, ''); };[code]...........
Is the next jQuery code the best way to decrease an elements width?[code]I tried using the next code:[code]but that's not working, also not with '-20'.Maybe it's an idea to add this functionality? It's is already used in the .animate() function for changing the position of an element.
I managed to smooth out the animations on this page here. However, I'm unsure on how to get the Javascript script (here) to center the first page as well. You'll notice when you click on the main menu items, the script will center the elements on the page, just not at the start.
I am trying to be able to manipulate the width and height of an <img> but do not seem to be able.
"Yes", I know the JavaScript will "not" manip anything, which is ok. I simply do not know how to capture the width or height. Once I can do that I can manipulate them.
Here is the HTML for the <img> <div class="ImgMnp" id="myImg" onmouseover="imgSize('myImg','fpImg)"> <img src="images/FirePlace.jpg" width="480" height="640" id="fpImg" /> </div>
Here is the JavaScript I tried to manipulate the <img> function imgSize(myID,myImg) { var myDiv= document.getElementById(myID); //get correct <div> var myImage=document.getElementById(myImg); //get correct <img> var myWidth=myImage.style.width; //attempt to capture width of <img> var myHeight=myHeight.style.height; //attempt to capture height of <img> alert("myWidth+, +myHeight"); //show if I this function works }
Will someone please tell me what I am doing wrong.
I have the correct height and width for an image, however when I set the Javascript pop up to this height and width it does not display all of the image.
Does Javascript use different dimensions or what? And how can I set the height and width for it to compensate for Javascript's mistake?
I can't make the browser to read the style.width and style.height from the CSS. Does anyone know a fix for that, so that I don't have to use inline styles for every div?
function toggle_visibility(id) { var e = document.getElementById(id); if(e.style.display == 'block')[code]....
and I do the return false to stop the thing from jumping all over the place, but where i click next, the page scrolls down to center on that point, which is really annoying. How do I stop it?
I was wondering if you can in CSS create an <img> tag with an Id? Then use that image tag in the body tag to refer to make it the background image. If you can I think I would then be able to resize the background image using DOM and javascript to fill the browser window without having to repeat the image, maybe?
I'm thinking this might work because. 1. Can't you create a style for any html or xhtml tag (element)? 2. The image tag has a height and width attribute. 3. If a tag (element) has an Id in the CSS you can control its attributes with DOM or javascript? 4. I should be able to use the Image tag by Id reference in the body tag - background attribute?
I have a form and in that form I have a file field through that I can browse for images. Now what I want is that whatever the image file user selected i need the width and height of that image.
How can I find the height and width of a webpage? Say I want to make sure someone's webpage is within an 800X600 viewing area. Width is the most important but if I can get width, I should also be able to get height.
I don't need to modify the page in anyway. Just get the width and height. I can reference the page in an iframe, cfhttp (CFMX) or something if it needs to be on my server.
I've ran into this problem more than once, there are plenty of tutorials on how to toggle/fade a hidden div that already has data placed into it, but I want to $.load() a page into an empty div ID and then toggle/fade it into view.
I can't for the life of me figure out how to do this or find anyone in Google trying to either. This has to be the first time I've ran into a limitation of jQuery and it isn't even something that should be such a problem.
I'm facing the following problem: I'm using .append() method to add a new <div> on the fly and I need to read its width and height right after it's been created. How can this be doneMy current strategy to accomplish this task is:
$("#container").append( $("<div/>").append( $("<p>").html("This is a content example that goes inside my just created div")
This script changes the image, I wanted to know if there is a way to automatically resize the div's height and width based on the actual image proportions.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head>
