[sonhit]

thank Lynne for your reply
but i just tried both have and no have !important;
in vbcms.css

my code here:

.cms_article_preview_image {
max-height: 250px;
max-width: 300px;
}

But it still not work in firebug the code still:
.vbcms_content img {
max-width: 100%;
}
css.ph...ud.css, (line 1669)
.cms_article_preview_image {
max-height: 150px;
max-width: 150px !important;
}

It seem not affect, so what's my problem here ???