Igor Kromin |   Consultant. Coder. Blogger. Tinkerer. Gamer.

Not long ago I wrote about Mobile Safari scrolling problem with an input field inside a fixed DIV and provided a solution that used a small amount of CSS to make the scrolling issue go away. This worked really well until I discovered that by setting overflow to auto caused the 'scroll' event to never fire. I rely on the scroll event firing so that I can dynamically load more data into a page, so this forced me into finding a better solution and here it is.

To reiterate the problem below is a video that shows how the background page jumps to the top whenever an input field gets focus (the field appears in a fixed position DIV)...


My solution depends on having two main fixed position DIVs. The first one is the page 'header', the second is the page 'body wrapper'. These together take up 100% of the page height. Inside the 'header' is another DIV that holds all of the popup DIVs that I wish to display (not visible initially). The 'body wrapper' DIV is another fixed position DIV that is simply offset from the top by the value equal to the height of the 'header' DIV. This DIV has it's overflow-y set to 'scroll' so the scroll event can be captured. Inside the 'body wrapper' DIV is another DIV that contains the actual content of the page.

Now when I display a popup, since it's inside the header which is always visible, the 'body wrapper' isn't affected. Perfect!

Here's the HTML...
<div class="tb_header">
...header content...
<div class="tb_popup_holder">
...popup divs...
<div class="tb_body_wrapper">
<div class="tb_body">
...body content...

...and the CSS (leaving out any extra styling)...
html, body {
margin: 0 0;
height: 100%;
width: 100%;
.tb_header {
width: 100%;
height: 40px;
position: fixed;
left: 0;
top: 0;
.tb_body_wrapper {
padding-bottom: 40px;
height: 100%;
width: 100%;
position: fixed;
left: 0;
top: 40px;
overflow-y: scroll;
.tb_body {
width: 100%;
display: inline-block;

The 'body wrapper' has a 40px padding at the bottom so that any content that goes to the end of the page isn't cut off due to the 40px header.

Now I can listen to the scroll event on the 'body wrapper' like so:
$('.tb_body_wrapper').scroll(function() {
// handle scroll


Hope you found this post useful...

...so please read on! I love writing articles that provide beneficial information, tips and examples to my readers. All information on my blog is provided free of charge and I encourage you to share it as you wish. There is a small favour I ask in return however - engage in comments below, provide feedback, and if you see mistakes let me know.

If you want to show additional support and help me pay for web hosting and domain name registration, donations, no matter how small, are always welcome!

Use of any information contained in this blog post/article is subject to this disclaimer.
comments powered by Disqus
Other posts you may like...