I think this is immaterial, but just for the record: I'm building a Joomla 3.4.3 website with my own Bootstrap 3 template.

The header image banner.svg on my website should be in the center. So what I did was: give the image this CSS:

header img {
   margin: 10px auto 0 auto;

But, whatever I do, the image will stay on the left, unless I give it a fixed margin:

header img {
    margin: 10px 90px 0 90px;

but I don't want to do that for obivious reasons: scaling for responsiveness.

The header image 'shrinks' on scroll (jQuery), but I don't see any connection there.

1 Answer 1


You first need to set the wrapper container to 100% with:

.navbar-header {
    width: 100%;

Then, for the image, you need to make it a block element and set the margins correctly, like so:

header.large img {
    height: auto;
    margin: 10px auto;
    max-width: 100%;
    width: 900px;
    display: block
  • Some people are so much better in intricate CSS matters. I vaguely remembered something along the lines of a containing element, but.... So thanks a lot, Lodder. I have one question though: as you can see the changes, when you scroll down the image becomes smaller (onscroll jQuery effect), but the containing element .navbar-header blocks the menu items from positioning alongside of the logo. Could you give a hint of a solution here? Sep 3, 2015 at 14:54
  • Try assigning width: auto; to the .navbar-header class on scroll. I'm not sure as to where this scroll function is coming from so can't give an exact answer, but I tried adding this value in Firebug and it displayed the menu in your desired position
    – Lodder
    Sep 3, 2015 at 15:04
  • I guess I know too little of JavaScript/jQuery to do that, so I'll ask about this on a jQuery forum. Thanx a million, Lodder! Sep 3, 2015 at 15:46

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