Develop Reference

Vertically aligning animated divs

I have three buttons that set different output text when clicked and I'm trying to use W3.CSS animations to "slide" the text in and out. I almost have it working using two separate divs but cannot get them to align correctly under the buttons; the div for every other button click displays lower than the previous one.
I've tried float, vertical-align: top, display: inline-block, and a few other things so far but either used them incorrectly or something else (a conflicting parent div style, maybe?) is causing problems.
Image with a button's output displaying right under the buttons (as it should)
Image with the next button's output displaying lower than the first
I trimmed code that wasn't relevant while also leaving what was necessary to show the div structure for this particular section.
HTML: The divs with IDs old_output and new_output are what I'm trying to align below the buttons
CSS: div.button_output_container and div.button_output are used for the output divs and their container
JS: Handles button clicks, decides which animation should be used, and sets the output text (aside from demonstrating the issue I think it's mostly irrelevant)
JSFiddle link

I am not sure I totally understand your alignment requirement,
but if you just want your divs to render on the same height, you could opt for position:absolute like so:
div.button_output_container {
position: relative;
}
div.button_output {
margin: 16px 24px;
width: 450px;
position: absolute;
}

Increase size of parent div as image gets bigger

My situation is the following: I have page that shows an image but sometimes it's too small, so I need to get the it bigger. I used CSS Transform to do that and works fine.
The problem is that the parent DIV's size does not increase, and there is space in the page for it to do so!
Using overflow on the parent does not help me because it crops the image or add a scroll bar. I need it to grow.
So, I managed to replicate a little what I am talking about here: http://jsfiddle.net/viniciuspaiva/7jJXQ/
When you click in the "Zoom" button, I want the div to grow and the pager below to get down. But I also want the page to load as it is, with the pager on top. Hope it's clear.
As you can see, I use bootstrap on my page. And the zoom button just adds a class to the image:
javascript:var img = $('img.center'); img.addClass('zoom');
Thanks!

Try doing it the other way. Have the image fit to the div, and resize the div instead.
Add this style to the image (assuming .myimg is the class).
.myimg {
display: block;
width: 100%;
}

Try placing this inside of your current div at the end of it before you close your current div. It will force the div to expand to contents.
<div style="clear: both;"></div>
So your div opens, the contents inside, then add the code above, then close the div.

Here's an example of Joseph the Dreamer's implementation. Check it out here. It only relies on setting display: block; and width: 100%;.

Rotation of CSS arrow and javascript toggling

I have two div banners that have corresponding CSS arrows. When the banners are clicked, the javascript toggles between revealing and hiding the text underneath. Likewise, the respective arrows rotate down when the text is revealed and back up when the text is hidden.
Now, I want my first div banner to be revealed automatically when the page first loads. However, when I drew my CSS arrows, due to the padding of the div, I can't get the arrow in the first div to be the same as the arrow in the subsequent div(s) and line up properly.
http://jsfiddle.net/nVuQ2/1/
I've tried messing with the placement of the arrow:
.tri0 {
margin-left: 20px;
margin-top: 5px;
}
but the best I can do is push the tri0 arrow up to the padding of the h3 tag and it won't go any farther.
Is there a way that I can set a toggle flag in the toggleClass to make it say that the first div banner is already toggled and subsequent clicks make it un-toggle?

Your issue happens because of the border of your tris elements. You are displaying different borders in each one of your elements, this will make them appear in different ways.
So basically I set them with the same borders values, the same rotation, and when your page first load it toggles your div and show your first message.
Note that is not necessary to have two different classes to toggle your element state, once that they are equal.
Check in the Fiddle.
Not sure if this is the solution that you wanted. But I hope that helps you.
Thanks.

Try using absolute positioning instead of floating, this way you can ensure the arrows are always aligned in the middle. You'd set parent div to position:relative, and arrows to position:absolute;
The code will look like this -
.slide0, .slide1 {
position:relative;
}
.tri0, .tri1 {
position:absolute;
top:0;
bottom:0;
margin:auto 0;
}
.tri0 {
right:5px;
}
.tri1 {
right:10px;
}
EDIT: Whoops, I realised I didn't compensate for the rotated arrow. Because the 10px border makes it effectively 10px wide, position .tri1 with right:10px instead. Updated code above, and update fiddle here.
Updated Fiddle

Floating content in loading scroll

I'm trying to teach myself how to implement a loading scroll into my scroll, but I am having issues with the div being called. The content is not loading underneath the scroll, but instead pops up on the side and looks the part as seen here when scrolling down.
The code in question is
if(y >= contentHeight-30){
movelist.innerHTML +='<div class ="newData"><center>hey look at me</center></div>';
}
I want to append content to the bottom of the scroll before the bottom is reached. Any insight or tips would be extremely helpful and appreciated

Many errors in the code.
To answer your question:
You need to add float:left; to your div.NewData. Check this fiddle
Second: To add comments in CSS you need to use /* */ and not <!-- -->.
Commenting with <!-- --> is not recognized by CSS so all that's underneath will not be applied.
Third: Ids are unique. All your <li> have the same id. Use a class instead.

Add clear: left; and float: left; to the class on the div you are adding it, then add additional stylings to make it fit the width.

Get rid of useless scroll bars on fancybox iframe

I have some content I want to show in iframe with fancybox. When I use it, it pops up with horizontal and vertical scroll bars even though all the content is inside of it. Inspecting it in Firefox shows that when I click on html everything is inside but there is a little left over that is outside of the highlighted box. The next level up is iframe.fancybox-iframe which includes the scroll bars. I looked at the css and that has padding and margins set to zero so I don't know why the scroll bars are there. Right now as far as options I just have autoSize:false. All I have inside the body of the page I want to show is a form.

If anyone wonders which class name to use
.fancybox-inner {
overflow: hidden !important;
}
And if you found a small white background you can reset it using
.fancybox-skin {
background: inherit;
}

Try adding this to the css:
.style{
overflow: hidden;
}
If it didn't help, please post your HTML and CSS.