How do you make a div follow as you scroll?

问题:

I have a div on the left hand side which includes the business hours and weather. I would like that div to scroll down and up according to how the user scrolls. So it would follow and move up and down with the page. How would I attempt this? This is my website judystropicalgarden.com

Thanks

回答1:

You can either use the css property Fixed, or if you need something more fine-tuned then you need to use javascript and track the scrollTop property which defines where the user agent's scrollbar location is (0 being at the top ... and x being at the bottom)

.Fixed
{
    position: fixed;
    top: 20px;
}

or with jQuery:

$('#ParentContainer').scroll(function() { 
    $('#FixedDiv').css('top', $(this).scrollTop());
});

回答2:

Using styling from CSS, you can define how something is positioned. If you define the element as fixed, it will always remain in the same position on the screen at all times.

div
{
    position:fixed;
    top:20px;
}

回答3:

You can use the fixed CSS position property to accomplish this. There is a basic tutorial on this here.

EDIT: However, this approach is NOT supported in IE versions < IE7, and only in IE7 if it is in standards mode. This is discussed in a little more detail here.

There is also a hack, explained here, that shows how to accomplish fixed positioning in IE6 without affecting absolute positioning. What version of IE are you targeting your website for?

回答4:

A better JQuery answer would be:

$('#ParentContainer').scroll(function() { 
    $('#FixedDiv').animate({top:$(this).scrollTop()});
});

You can also add a number after scrollTop i.e .scrollTop() + 5 to give it buff.

A good suggestion would also to limit the duration to 100 and go from default swing to linear easing.

$('#ParentContainer').scroll(function() { 
    $('#FixedDiv').animate({top:$(this).scrollTop()},100,"linear");
})

回答5:

the position:fixed; property should do the work, I used it on my Website and it worked fine. http://www.w3schools.com/css/css_positioning.asp