I am really fond of the floating header at theverge.com. When you scroll down, the header stays fixed on top and when you scroll down to a certain point, The Verge logo appears which allows you to zoom back up.
How do I reproduce a similar header, can it be done with just HTML and CSS?
try this with CSS
.fixedHeader {
position:fixed;
top: 0;
}
the small button you should build with jQuery.
therefore you have to check the property scrollTop to know when the button should be shown. and if you click the button you should .animate() the scrollTop-property with jQuery back to zero (0).
DEMO
And here with small button and click-event:
DEMO
Related
I am currently runnning a test site on Wordpress.
I have my page with several divs which have IDs and a menu on top with anchors which lead to those IDs.
My header is sticky, so when I click an anchor, it navigates to the div ID, but the beginning of the div stays hidden below the header. I would like it so that when I click an anchor, it navigates to the div, but few pixels above it.
I managed to do that, though with a little problem.
(function($,document){
$("a[href^='#']").click(function(){
var url = $(this).attr('href');
$('html,body').animate({scrollTop: $(url).offset().top - 90}, 2000);
});
})(jQuery);
What happens is:
I click an anchor with a href="#someid"
My browser navigates to the #someid with offset of - 90px (It works perfectly so far)
Then my browser scrolls 90px down, to the position where the div #someid starts at the beginning of the viewport (and behind the sticky header).
Finally my URL changes to http://example.com/#someid
I just want to delete step 3. Any help is much appreciated.
Update:
I just found out my theme has jQuery "One-page-nav" plugin installed and it is interfering. Still trying to understand how it works and if I can modify it to have offsets
I was having the same issue and in my case I solved it by adding padding-top and a negative margin-top of the same value:
.some-class {
padding-top: 4em;
margin-top: -4em;
}
By doing this my element looks like it's on the exact same location but the browser finds it sooner while scrolling. You can set these values to the height of your sticky header or play around to make sure the heading is exactly where you want it to be.
I hope I'm explaining this in a way that's understandable... It sure makes sense in my head :D
I have a responsive header that I'm working on for a site that turns into a fixed-position navbar as you scroll down. It takes up roughly the upper quarter of the page.
The content of the page is in a series of divs / cards that slide up as you scroll down.
I want to add <a href> links to the navbar that correspond to the ids of the divs. However, when I do so, the div content moves to the top of the page.
So I get something like the following when I navegate to /localhost#first_card
---- TOP OF PAGE
[<div id="first_card"> begins here]
---- bottom border of navbar
[<div id="first_card"> continues here]
when what I really want is this:
---- TOP OF PAGE
---- bottom border of navbar
[<div id="first_card"> begins here]
Is there a way to control where on the page the hash link might render the <div id="first_card"> after navigating to /localhost#first_card?
I've been trying to solve this for you in JSFiddle for a bit now, and from what I can find, the best way would be to box all the cards into a seperate element with overflow:auto
The result of this, and as proof of it working can be found at http://jsfiddle.net/Entoarox/TT2JN/
This may not work for your site, but the only alternative is using javascript to solve this and I cant recommend that because it would cause a massive load on the visitors PC due to most hash related javascript functionality being either static or very new, meaning that to support older browsers, you'd need to manually poll if the hash has changed, either taking up a lot of CPU time, or having a very slow response to when the hash has changed.
Try the jQuery scrollTop() command. This will give you the precise positioning that you need.
http://api.jquery.com/scrollTop/
You might have to change your links up a little. Example with jQuery and a wrapper div:
<a id="first-card-jump" href="#first_card">Jump to First Card</a>
<div id="wrapper">
NAVBAR
first div
second div
...
nth div
</div>
<script>
$('a#first-card-jump).on('click', function(event) {
event.preventDefault(); // Not sure if this is needed
$('div#wrapper).scrollTop(500); // you have to measure how far down you want to scroll
});
</script>
Note that this might mess up your in-page back button support. Not sure if that's an issue for you.
p.s. If you're in time trouble, the simplest fix is to add a top margin to each div equal to the height of the fixed navbar.
Hope this helps!
I made you a jsfiddle
it uses padding-top to create the offset to the top, then it uses margin-bottom to remove the offset between the elements.
the relevant css:
/*
add top padding and substract the same amount from bottom margin
*/
.card {
padding-top: 200px;
margin-bottom: -200px;
position: relative;
}
/*
we need to reverse the stacking for this solution, so the elements later in
the document don't cover the elements before
either you know how many cards you have, so you can solve this in a central
css file (like below)
or you must add the stacking upon creation (in your template)
or use the javascript
starts from 2 because nav is :nth-child(1) in this example
*/
.card:nth-child(2){
z-index: 0;
}
.card:nth-child(3){
z-index: -1;
}
.card:nth-child(4){
z-index: -2;
}
javascript to reverse the stacking, using jQuery
$(function(){ //on load
$('body>.card').each(function(i, elem){$(elem).css('z-index', -i)})
})
If I understand your question correctly, you want to make a div appear in the middle of the page, right? So, to do this, you can just direct the page to the div above it. You can also make another div above it with a fixed height.
I've created an example here : http://jsfiddle.net/Ninjanoel/9GEGU/
Basically, I'd like to affix something to the right, in this case, the red box, I want it to appear to just pin itself to the top as it should once the correct amount of page scroll has occurred, but everytime it 'affixes', it jumps to the left, overlapping the content I already have on the left.
It's great that bootstrap has such a volume of documentation, but unfortunately I think I'm missing something regarding this. Please help.
var offsetFn = function() {
return $('#sidebar').position().top;
}
$(document).ready(function(e) {
$('#sidebar').affix({
offset: {top: offsetFn}
});
});
is a code snippet I found on Stack overflow to not have to guess the top offset value, but even if I give it a simple value, when the div becomes affixed it jumps left.
Note about the fiddle : it doesn't appear to be working very well, at least the version on my hdd jumps left, but it is the code i'm using basically, and the small window size may complicate things, green and red boxes are suppose to be vertical columns
Create inner div for sidebar. Affix is setting position: fixed to column therefore making it not working.
Edit: see http://jsfiddle.net/9GEGU/2/ and your function is needless, only causing weird behaviour in FF, so remove {offset: {top: offsetFn}}. It will look the same but scrolling will be smoother.
Also set width of span5 (290px) to the #sidebar because when element has position: fixed it is removed from document flow and isn't limited by parent's width.
I am creating a feedback system for one of my projects. My target device is iPad. Basically what happens is a div called into the page via ajax and it is supposed to overlay the content underneath. I have that part working.
What I want to do is have the div locked to the middle of the view-port. I have tried position:fixed on my element which works, except it will lock into the wrong position. It seems to be centering itself to the initial position of the viewport. If I scroll down to the bottom of a longer page and call my feedback window, it will still be near the top.
Ajax Page (this runs when the page is called)
$(document).ready(function(){
$(".popup").css({
top: "50%",
left: "50%",
marginLeft: -$(".popup").width() / 2,
marginTop: -$(".popup").height() / 2
});
});
If I can find the top of the viewport I think I'd be able to get this working right.
I've looked into: http://www.appelsiini.net/projects/viewport but it doesn't really solve my problem.
Any help, advice or pointers in the right direction would be greatly appreciated! Thanks!
Fixed positioning is applied relative to the top-left corner of the window, regardless of how far down you're scrolled (which I assume is what you want).
So:
.popup {
position:fixed;
top:20px;
left:40px;
right:40px;
}
Will, first of all, put your popup 20px from the address bar (meaning, even if you scrolled to the bottom).
Next, setting both left AND right will "stretch" the fixed element to start and end 40px (or whatever you give it) from both sides of the window. That's a convenient way of centering this popup div.
If your popup needs to be a fixed size – not stretched based on the width of the window – you could set both the left and right (to zero probably) and then inside this div, have another div with margin:0 auto, which will center that inner div within the fixed outer div.
P.S.
Just as you can set both left and right, you can also set both top and bottom, which will have corresponding results. However, if you need a fixed height, you won't be able to vertically center it using the margin:auto trick.
Don't know if it's the case, but If $(".popup") it's initially hidden by display:none, then it's width and height will be zero on page load.
I need to have a div box in a static position meaning that when someone scrolls down the page, the div stays in the same position.
I have googled a lot and I found some solutions, but they were all using defined positions like top left, top right etc.. and I need a solution that will work regardless of the place the div is in. So basically the script needs to either take the current position and set that to the fixed position, or not work with fixed X/Y position..
Any ideas?
Thanks,
You need to use position:fixed for your element.
Example:
#dv{
position:fixed; /* this is important for you */
width:200px;
height:200px;
background:blue;
}
Check out the example
Notice that div remains there even if you scroll :)
http://jsfiddle.net/Shaz/Fqr4t/
I'm not entirely sure what you mean by 'regardless of the place the div is in', however, if you can't use position: fixed, there is an onscroll event in Javascript that you can hook into. You can update the position of the div there. Do note that this is usually isn't fast enough to look fluent.