How to center thumbnails in a gallery?

same question here ?? why isnt it possible to search the support forum?

Why is this such a problem?!

I have been banging my head on this for months. Tried everything I can think of css wise, used Firebug to test various whatevers – no luck, and I feel really stupid that I can’t fix this.

Anyone have a solution???

You can try this code:

.ngg-gallery-thumbnail-box {
    float: left;
    height: 150px;
    width: 136px;
    position: relative;
}

.ngg-gallery-thumbnail {
	margin-right: auto;
	text-align: center;
	float: none;
	position: absolute;
	bottom: 0px;
        width: 100%;
}

.ngg-gallery-thumbnail-box img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

just adjust .ngg-gallery-thumbnail-box width and height.