I'm trying to create a responsive website in Dreamweaver with a header and menu which initially scroll and then stick to the top of the page.
The header and menu would need to scroll over the top of a fixed hero image.
This hero image can't be defined as a background as it will be powered by a flexslider script to change the image after a set time.
I would also like the sticky header to possibly shrink down in height when it reaches the top of the page, to reduce the amount of screen space it takes up.
I've found a number of sticky menu examples on-line and some seem to have the annoying trait where the content directly below the menu disappears behind it at the point at which the menu sticks to the top of the screen. I would like to avoid this.
Please find a Mock-up of what I'm looking for here
Obviously, all of the above won't be acceptable on a mobile device.
So for mobiles, the header would need to scroll out of the way, leaving just a hamburger style menu fixed at the top of the screen.
I have found a number of examples on-line with elements of what I require, but nothing yet that combines everything.
I've tried cutting and pasting code from different sources, but haven't yet achieved the desired effect.
I don't know if what I'm asking for is workable, but I would appreciate if anyone could point me to examples of how to achieve this (or improve upon what I'm looking for).
Thanks
Neil White
Use this JS
http://stickyjs.com/
it adds the class is-sticky to the element which you wanted to stick to top. So you can add height in css for is-sticky class. Which in terms will reduce or increase the height of element when it reaches to top as per your requirement.
Related
Before i start, I wanted to let you know that I have been searching high and low for a solution to my issue but the closest thread I've found is unfortunately without the answer to the actual problem - Position absolute inside div with overflow-x scroll and overflow-y visible
Essentially I got main page where I am dynamically loading some other pages and on some of them I used dropdown listboxes. It happened that I haven't noticed it earlier as content any of the pages wasn't wide enough for me to spot the problem.
The problem I face is absolutely positioned div (which contain dropdown) and visible horizontal scroll bar on the parent of this div. When I scroll my page horizontally the dropdown div stays in the same place on the screen. I read about "popping out" absolute divs under this link:https://css-tricks.com/popping-hidden-overflow/ but even there, I can observe similar issue I am currently facing, which is appearing of the vertical scroll on the parent element. I am trying to achieve similar effect like here:
http://jsfiddle.net/matcygan/4rbvewn8/7/ but stop vertical scroll bar to appear when the listbox is expanded - instead it should overflow the box and party cover horizontal scroll bar. Here I've found another prompt example how can I achieve it http://jsfiddle.net/b5fYH/ but when i try to play with it and make red boxes scrollable with content as well as overflowing outside of the content vertically, without creating vertical scrollbar, I am failing... I am also fine with using JS if CSS on it's own can't deliver such effect.
In the end after 3 days battle, the CSS won and I need to ask for a help...
Any support will be greatly appreciated.
Thanks in advance.
SEE BELOW UPDATE
LOOK AT THIS SITE AND CHECK ATTACHED IMAGE --> https://www.blinker.com/
If you see, the elements transition vertically in a smooth way on both computers and mobile devices.
They seem to have a full height based on the view-port something like the CSS rule below which is something easy to do and which accomplish full height based on viewport.
element {
height: 100vh;
}
But I am trying to do the scrolling thing.
When they scroll between each section or each element or div.
The transition goes like very smooth either by clicking on the right circle links or by doing it with your fingers on a mobile device.
(Make reference to #1 inside the image)
#1 - Can someone knows how to do this?
Also if you notice, on that site the Mobile URL Bar is always visible.
It is like they refresh the page every time, see how the favicon re-uploads every time when you go through each section.
(Make reference to #2 inside the image)
#2 - How I can accomplish that?
RESOLVED
I used this pure JS solution, it solved both problems.
https://github.com/peachananr/purejs-onepage-scroll
Ive got a hamburger nav element that is white most of the site has a dark background, but a couple of sections have light backgrounds.
What im trying to do is if the hamburger nav is over one div keep its css one way, if its over another div change its css.
Ive been trying to get this to work by calculating how much the page has scrolled using $document.scrollTop() and there by working out where the hamburger nav would be, but there a 2 issues with this :
1) its not very automated and each time new content is added to the page and the sections get longer it will have to be recalculated
2) Some of the section heights are set responsibly so knowing the height of section in advance and the hamburgers position in relation to them is not possible.
Any idea how this could be done ?
Ive made a JSfiddle here : https://jsfiddle.net/kd1x7jk4/1/
I believe what you are describing is collision detection.
There is a library that can help here:
http://sourceforge.net/projects/jquerycollision/
I have seen several questions about floating or fixed sidebars on Stackoverflow, but I could find none that covers this scenario.
Take a look at this page as an example: http://msdn.microsoft.com/en-us/library/aa691131(v=vs.71).aspx
When the page is scrolled up, the sidebar also scrolls up with it, until its top edge hits the top of the window. As the scrolling continues, the side bar stays fixed in its place until the page footer reaches up and pushes the sidebar up with itself.
Therefore, the sidebar is always trapped between the page header and the page footer, but within that limitation, it tries to stay visible as much as possible.
This is done by using javascript. I was wondering if you guys have already achieved something like this, or if you know of a solution, that you can share here.
Thank you.
This is a great tutorial on how to acheive this effect through jQuery... http://www.hongkiat.com/blog/css-sticky-position/
It uses jQuery .addClass() to add a class to the element when a certain scroll position is reached.
And the respective .removeClass() when the user scrolls back past.
I'm having a little trouble getting my head around a Javascript animated scroll issue.
I'm using the SuperScrollorama Jquery plugin which is built on-top of the Greensock JS tweening library.
The fundamental effect I'm after is to "pin" a section down, then use vertical scrolling to expand some content, then "unpin" the section once the content is fully expanded, so the user can scroll on - i.e. http://blueribbondesign.com.au/example/
But when I try to apply this same effect to multiple sections one after the other, everything gets all broken: the "unpinned" content below the pinned element is pushed off screen and it seems to miscalculate the height of the element when it performs the animation in reverse (i.e. scrolling back up the page). - i.e. http://blueribbondesign.com.au/example2/
I've been endlessly fiddling with the "position:fixed" and "pin-spacer" div, and tried attaching the Superscrollorama plugin to various containing elements, but still cannot work out how to get it to work.
Any help from the brilliant crowd-sourced minds of the web would be much appreciated,
Cheers,
TN.
I've been working with this issue myself. What happens is there's a blank div spacer put above the section being pinned with a height that you've defined in the pin() function. Secondly, the pinned element gets a position:fixed assigned to it. Both of these things allow the scroll bar to continue down the page while the element stays affixed. In turn, whatever you had below that section gets bumped down because of that spacer div's height.
If your pinned element is centered horizontally, first give it a left:50%, margin-left:-{width/2}px to fix it from pushing to the left edge.
Next, you'll have to detect the pin/unpin events (which are offered by the plugin as parameters additional to "anim"), and change the section underneath to also toggle a fixed/relative position. When you change that underlying section to be at a fixed position, be sure to set its "top" property to whatever the pinned element's height is. Once the pinned element becomes unpinned, change it back to relative positioning. Does that make any sense?
It seems that different techniques will call for different fixes, but those things are what I'd pay attention to... fixed positioning, and then using the pin/unpin events for adjustment.