when a div is not displayed, forget this css rule - javascript

I have a situation where I have 3 divs :
- Menu - Header (#rt-top-surround)
- Showcase (#rt-showcase)
- Main Body content (#rt-mainbody-surround)
The Menu is 'sticky' with position: fixed. Therefor I have to move the div that is rendered below it with padding (padding-top: 120px; margin-bottom: -120px;).
The problem that I run into is that on some pages the second DIV is #rt-mainbody-surround. (Than this div is rendered properly.)
But on other pages I have #rt-showcase (that displays some promotional images) as second DIV followed by the main body DIV.
So what I would need to implement is a rule that not adds the padding & margin on the rt-mainbody-surround div when the rt-showcase is displayed. And I'm not wether to do this with Javascript or with PHP and how to accomplish this.
I've made an illustration to show what I exactly mean.
Hope anyone can help me out here! Thanks!
Illustration

If I understand the question correctly you want a margin below a specific div only if another div isn't actively visible. The best way to handle this is to add a bottom margin to the top div and negative margin to the div below it (that can be shown and hidden). The css for that is:
.top {
margin-bottom: 20px;
}
.middle {
margin-top: -20px;
}
Sometimes a picture is worth more than some code though so I created a fiddle here. Enjoy!

Related

PDF Type view using html and css. Page overflow problem

I am trying to create a "document viewer" of sorts using html and css. I'm wanting the end result to look somewhat of a pdf when viewed in an iframe with no border.
I have a parent div setup with a class of paper. This has some box shadow and other styles attached to it.
<div class="paper">
</div>
Within this I have children divs setup with a class of page. This is where all the content sits for the page.
<div class="page">
</div>
My problem is when the content gets too long for a page and you scroll to the next "page" it all mixes together and looks like junk. I have attached a code pen to further assist in being able to visually see what I am struggling with.
CodePen
CodePen Link Here
You can change your page class in CSS with this:
.page {
height: 100%;
margin-bottom: 15px;
padding: 20px;
display: table;
text-align: center;
}
What is the problem?
If the content in your pages gets too long, it overflows the height end kind of "bleeds" on the next page.
What to do?
You should set a fixed height of 100vh to your paper
Then, tell it not to expand with: overflow: scroll
Use min-height to set the height of your page, instead of height: it will naturally expand the height of the pages instead as you content grows
Finally, just in case, set overflow: hidden to page

Animating divs in a set

I currently have a list of objects (projects) that are presented to the user initially as div's that have have a 100px x 200px height/width, position absolute, and float left. This list is contained within an angular ng-repeat method (not sure that makes a difference in the overall question but figured I'd add it in just in case it does). There could be 100s of these divs on the particular project listing page. Currently, I have the page setup so that if you click one of the projects, it's details come up in a modal dialog box. This functionality is fine per the requirements for my project but I'd like to add some "umph" to it by adding in an animation that does the following:
1) If you click on one of the projects, the box expands up to fill the parent container that contains all the projects
2) As the div grows to fill the space or when it's full sized, I want to expose the details of the project itself. Essentially, when the project is unselected, it's just a title/description showing. When it is selected, the project div goes full screen, exposes all of it's details, and shows it's editable fields in the full screen version of the div.
3) When the user closes that full screen div, I'd like it to go back to it's original state in it's original position.
I'm only using the latest version of Chrome for this project so it doesn't need to be a cross browser solution. I'd prefer to keep the animation as close to pure css as possible and would prefer to leave jquery out of it.
I currently have no experience with css3 animations but got a book on it that I hope can teach me about this eventually. However, I figured I would ask in the mean time in case someone can help me out soon so I can put this functionality in while still meeting my deadline for the functionality.
Thanks in advance!
Create a second CSS class that can be added to your div element when it is selected, and removed when it is not. Something like
div {
top: 100px;
bottom: 200px;
left: 100px;
right: 300px;
transition: all 1s; /* animate changes */
}
.active {
top: 0px;
bottom:0px;
left: 0px;
right: 0px;
}
.content {
display: none; /* hide the content unless active */
}
.active .content {
display: block; /* show the content when .active class is added */
}
Make sure that the parent container fills the entire window and is itself set to positiion: absolute or position: relative. There will be a lot more details to work out as you go, but that should give you a framework to get started. You can then add or remove the .active class as needed with JavaScript.

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%;.

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.

Slide in/slide out header div / reveal partially hidden div

I would appreciate some help and insight on a solution to this problem. I am developing a website with a header div of initial visible height of 180px. The header div is 340px in total height. When a user clicks on a link, I am needing the header div to slide down to reveal the rest (top) of itself. So, mathematically speaking, when a user loads the page, the bottom 180px of the 340px header div will be displayed. When they click the link, the rest of the div slides down to reveal its top 160px. When a user clicks the same link, the header div slides back up so only the bottom 180px is displayed again.
I have tried getting this to work, but am not sure what I am doing wrong. My initial thinking was to use slideToggle() (hide/show), but I can't seem to get that to work. Others on StackOverflow suggest animate(), but I don't know how to get that to work either.
I have searched on StackOverflow and seem to find a lot of questions regarding showing and hiding an entire div, but the problem is this completely shows and hides the divs. I am needing my div to slide down to reveal the top hidden portion and then slide back up to it's original resting position (-160px offscreen).
Any help would greatly be appreciated! I have included my starter code below:
HTML:
<div id="header">
Click me to reveal the top half of this div
</div>
JQuery:
$(document).ready(function(){
$('.toggle').click(function(){
$('#header').slideToggle("slow");
return false;
});
});
CSS:
#header {
position: fixed; /*I would like this div to always be fixed to the top of the browser window*/
top: 160px;
left: 0;
width: 100%;
height: 340px;
z-index: 10;
}
Try this JSFiddle, please.
http://jsfiddle.net/WFxLJ/3/

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