putting image always in center page - css

Question

putting image always in center page(E.x image loading for ajax call), even when move scroll. how is it?

Answer 1

For most browsers, you can use position:fixed
img.centered {
position:fixed;
left: 50%;
top: 50%;
/*
if, for instance, the image is 64x64 pixels,
then "move" it half its width/height to the
top/left by using negative margins
*/
margin-left: -32px;
margin-top: -32px;
}
If the image was, for instance, 40x30 pixels, you'd set margin-left:-20px; margin-top:-15px instead.
Here's a jsfiddle example: http://jsfiddle.net/WnSnj/1/
Please note that position:fixed doesn't work exactly the same in all browsers (though it's ok in all the modern ones). See: http://www.quirksmode.org/css/position.html

Answer 2

<style>
.CenterScreen{
position:fixed;
/*element can move on the screen (only screen, not page)*/
left:50%;top:50%;
/*set the top left corner of the element on the center of the screen*/
transform:translate(-50%,-50%);}
/*reposition element center with screen center*/
z-index:10000;
/*actually, this number is the count of the elements of page plus 1 :)*/
/*if you need that holds the element top of the others. */
</style>
If you add this class your element, it will be always center of the screen.
For example:
Hello world

Answer 3

This might help you : http://skfox.com/2008/04/28/jquery-example-ajax-activity-indicator/

Answer 4

Put the image in a div tag with some class name (centeredImage) and use the following css
div.centeredImage {
margin: 0px auto;
position: fixed;
top: 100px;//whatever you want to set top;
}