Fixing List Indentation without breaking post image galleries

I used the following code to fix indentation of bulleted lists

#main-content ul li,
#main-content ol li {
margin-left: 25px;
}

Unfortunately, it appears the image galleries in my posts use the same list tags. Any ideas for any workarounds? I can add .page to the top of that code to only have it apply to pages and not posts but then I still have misaligned bulleted lists in my posts.