[Plugin: NextGEN Gallery] space between thumbs on compact album page

My goal is to create more space (e.g. 48px) between the thumbnails on my album page (each thumb links to a gallery). I tried this in firebug and it worked. Why doesn’t it work within the real code? Can someone help with specifics of what else needs to change? Here’s link to my page: https://www.kiteastman.com/portfolio/

FYI, Below here is how I changed the css:

/* ———– Album Styles Compact: LEAVE setting at Float:left, i changed 180 to 200, 120 to 200, text align left to centerm abd 6 to 48px ————-*/

.ngg-album-compact {
float:left;
height:200px;
padding-right:48px !important kit changed from 6 to 48 -worked in firebug;
margin:0px !important;
text-align:center;
width:200px;
}
/* omit the box? tried this and YAY it WORKS — just commented out this section:
.ngg-album-compactbox {
background:transparent url(albumset.gif) no-repeat scroll 0%;
height:86px;
margin:0pt 0pt 6px !important;
padding:12px 0pt 0pt 7px !important;
width:120px;
}
*/

/* I increased the size, both the width and height of the thumbnails here */
.ngg-album-compactbox .Thumb {
border:1px solid #000000;
margin:0px !important;
padding:0px !important;
width:200px;
height:200px;
}

.ngg-album-compact h4 {
font-size:15px;
font-weight:bold;
margin-bottom:0px;
margin-top:0px;
width:110px;
}

.ngg-album-compact p {
font-size:11px;
margin-top:2px;
}