CSS Dynamic Margin on Window Resize - javascript

Can I dynamically ensure that the content always remains centered in the window pane on this website?
Right now it uses a static margin-left on the .items class, and it uses jquery tools.
http://andstones.ca/newsite/
Can I do it in just CSS or CSS and Javascript?
Thanks,
Kory

I didn't quite see what part you were talking about as it looks like most of it works just fine.
For auto-centering, you should use auto for margins:
margin: 0 auto;
Put that one whatever div you want centered.

Lets say that you want to center a container with 900px wide, the most cross browser way that I've used is:
div#container{
width:900px;
position:relative;
left:50%;
margin-left:-450px;
}
This goes to the center of the x axis and stays there regardless of other elements of that page!
Of course that this only works with a fixed width and not a dynamic one!

If i remember correctly, you have to use the following in IE
text-align: center;
Even to center a div

Related

DIV element cursor behaves inconsistenly

I have a DIV element on a JSP page whose behavior is defined in the following CSS class:
.toolbarRight .shortcut {
background-position: left center;
background-repeat: no-repeat;
width:16px;
height:16px;
margin:0 8px 0 0;
display:inline;
cursor:pointer;
position:relative;
top:6px;
float:left;
border:none;
}
span.toolbarRight .export {
background-image: url('/images/excel.gif');
}
So basically when you hover over it with the mouse it should change into a pointer. The problem is that it only changes into a pointer over the bottom 1/4 of the element, over the top 3/4 it doesn't. Look at pictures below for illustration of the problem.
Pic 1: mouse cursor is over bottom 1/4 of Excel icon (changes into pointer):
Pic 2: mouse cursor is over top 3/4 of Excel icon (does not change into pointer):
Another thing that's strange is that it only happens in my current screen configuration which includes two DHTMLX grids, one in the top half of the screen, the other on the bottom (look at picture below; Excel icon where problem occurs is circled in yellow):
If I have three grids (two horizontal and one vertical) the problem does not occur:
Anybody know what the reason for this is?
Usually when I have this problem, it's because you have another item's padding overlapping the toolbar (or something else). Since the bottom 1/4 is visible, then odds are something above it is overlapping below slightly.
The other answers might be right, but you might also have a float issue here.
You can force parent containers to wrap their floated children by applying overflow: hidden;. Try that out. If it fails, use a clearfix.
Also, I don't know if the width and height of your .toolbarRight .shortcut class will stick because you have it set to display: inline. Try inline-block or just plain old block when you need to apply width and height to things.
It is your
position:relative;
top:6px;
combo - the element sits 6px lower than where you think. The image may be up higher but the container isn't. Move your pointer to the image, not the container for the image

Center Large Webpage in Browser [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Center contents of webpage
I have a webpage that is 1640px wide, the main content is centered in the page and is 900px wide. I need to have the webpage center horizontally in the browser window no matter what the users screen or browser size is. Is this possible with javascript, jquery, or css? I dont have any real experience with java so could someone point me in the right direction or do they have a code sample? Thanks for the help!
here is a link to the page to help. Webpage link
the problem i might be having is becuase the header and footers are outside on my container and run the entire width of my webpage.
I found your problem... Your code is doing what you want it to do. You need to remove the css that says width:1680px; from your html,body
instead make it say: width:100%;
hope that helps!
The code looks like this:
#container { width: 1640px; margin: 0 auto; max-width: 100%; background-position: center 0;}
You need to use a relative measurement - i.e 100% percents - and not a fixed number - i.e. 1680px. That way your wrapper will take the entire width of that specific screen no-matter what the resolution is, and the content will be centered:
#wrapper {
width:100%;
}
#content {
width:900px;
margin:0 auto;
}

Chrome, jquery animate wobble

I have an issue that only affect Chrome. Furthermore its only visible when the screen is at certain widths.
I've created a fiddle that can replicate the issue.
http://jsfiddle.net/T8LvA/63/
When you rollover the red box the width of the parent is animated to reveal more of the red box.
You may need to adjust the width of the html pane several times before you see the wobble,
Any thoughts on how best to resolve this?
Thanks
Use float:right instead of positioning it absolutely.
http://jsfiddle.net/T8LvA/70/
It happens because when you change the width, it extends to the right - then it's reflowed and moves back to the left to the correct position, which causes the wobble. Floating it to the right always keeps it there.
To clarify: you'll need to replace position: absolute width float: right on both #widget and .hidden for the correct result.
if you use postion you need use left and top, in this case it is useless.
Try fx you css in this way
#wrapper{
width: 100%; // was 600px
height: 100px;
margin: 0 auto;
//position: relative;
}

Overlaying one div over another, but not knowing the size of the div

I'm trying to lay one div over another. This is really simple if you know the dimensions of the div.
Solved here:
How to overlay one div over another div
So, here is my HTML:
<div class="container">
<div class="overlay"></div>
<div class="content"></div>
</div>
In my case, I don't know the exact dimensions of the "content" or "container" div. This is because I don't have control over any of the content in the div (we are making our app extensible for 3rd party developers).
See my example on jsFiddle
The overlay should cover the content entirely. Width 100% and Height 100%. However, this does not work because in my example I positioned the overlay absolutely.
One solution is to use JavaScript to get the size of the content div and then set the size of the overlay. I don't like this solution much since if image sizes are not specified, you need to wait until images are loaded and recalculate the size of the div.
Is there any way of solving this problem in CSS?
You could set the position to absolute and then set all 4 positioning values to 0px which will make the box expand. See a demo here: http://jsfiddle.net/6g6dy/
This way you dont have to worry about recalculating things if you want padding on the overlay or the container (like you would if you used actual height and width values), because its always going to be adjusted to the outer dimensions of the box.
It's not possible to do this because:
The overlay is not contained by anything to restrict it's size (since there is no height/width applied to the container).
The size of the content div can change as content loads (since it has no fixed width/height).
I solved this by using JavaScript*. Eg.
function resizeOverlay() {
$('.overlay').css({
width: $('.content').width()
height: $('.content').height()
});
}
$('.content').find('img').on('load', resizeOverlay);
*Code not tested.
Hey are you looking like this : http://tinkerbin.com/Vc4RkGgQ
CSS
.container {
position:relative;
background:blue;
color:white;
}
.content {
position:absolute;
top:0;
left:15px;
background:red;
color:yellow;
}
I do not know what you are exactly trying to do but this might work:
container must be relative: anything from static
overlay and content are absolute :move top/left in first non static parent; no flow.
Give same top/left to be on top and higher z-index for upper element.
See this demo: http://jsfiddle.net/rathoreahsan/kEsbx/
Are you trying to do as mentioned in above Demo?
CSS:
#container {
position: relative;
}
.overlay,
.content{
display:block;
position: absolute;
top: 0;
left: 0;
}
.overlay{
z-index: 10;
background: #ccc;
}
You can indeed do this without JavaScript. Your problem is that #container element has 100% width relative to the whole page. To fix this you can:
a) position it absolutely,
#container {
position: absolute;
}
b) make it float or
#container {
float: left;
}
c) make it display as table cell
#container {
display: table-cell;
}
One of the above is enough, you don't need to apply all. Also you should not position .content absolutely as this will prevent #container to have the same width/height.
If you are worried about images loading after the height is set you can go ahead and set the dimensions of the image in the containing div and use the padding-bottom hack. This way when the browsers paints over the page it knows how big the image will be before it loads.

Can the content remain centered while the screen size changes?

First, here's is my rough example: http://demindu.com/sandbox/simple.html
What I'm trying to do:
Create a content div: let's say 400px tall and 700px wide, like the example. The content box has a margin of 50px in each direction. The content div should always be centered both vertically and horizontally, regardless of screen resolution. The black background should extend from the centered content area all the way to the right side of the screen, but not to the left.
The only way I can think of possibly doing this is something using window.innerWidth & window.innerHeight in JavaScript, but I don't know enough to know if this is even possible.
The amount of blank space above and below the middle section would need to be:
window.innerHeight - height of the div (in this example: 500px [400px box with two 50px margins]) / 2
The blank space to the left of the black bar would need to be:
window.innerWidth - width of the div (in this example: 800px [700px box with two 50px margins]) / 2
My question to you is: Is this possible in JavaScript? Is this possible somehow with pure CSS?
You can do this entirely in CSS with 4-point absolute positioning. You will need two elements:
The first item spans from the right of the screen to the center where the content is positioned. This element uses absolute positioning for the top, left, and right coordinates of the element (we can leave bottom unspecified as it's taken care of by the height.)
The second item is nested in the former. This item has a fixed width to ensure the content itself remains in the specified width you've chosen. We can also set the height and padding on this object and the parent will inherit it's height. Don't use margins to simulate padding - it can cause cross browser issues when you're just trying to do some positioning tricks as we are here.
So your HTML code would look something like this:
<div id="my_centered_design">
<div id="my_centered_design_content">
<p>This is just some example text.</p>
</div>
</div>
And you're CSS would look like this:
div#my_centered_design {
background: #000;
margin-left: -400px;
margin-top: -250px;
left: 50%;
position: absolute;
right: 0;
top: 50%;
}
div#my_centered_design_content {
background: #333;
height: 400px;
/* I think you actually want padding for
the effect you're trying to accomplish */
padding: 50px;
width: 700px;
}
Essentially this is the same trick as the Joe2Tutorial except we are applying additional positioning rules to adhere the centered element to the right side of the screen.
I think this pure css solution would suit you best: http://www.joe2torials.com/view_tutorial.php?view=37
A very quick google resulted in this piece of code.
this code does not align a div in the middle. what you actually for your own website is that you put the following div css
.main {
width: 140px;background-color: #252525; float: left;margin-top: 25px; }
inside a table that is aligned to be centered. so, basically you're using the table's centering feature to center your left floated div simply as a content. you're not doing anything through div or css for that matter. the piece of css code you offered doesn't not anything about centering a div in the middle.

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