I'm having a problem getting my page to expand to display different length blogs.

I've read up on the other answers here and created a test page for now but it doesnt expand despite adding : min-height:625px;
 height: auto !important;
 height: 625px;
 overflow:hidden;
but its not working!

I'm using container on most pages, container-blog on the blog page (I've got round it for now by creating a really long page that everything fits on, but there must be a better way? and container-test on my test page so i can play around with the settings without messing up the live page.

Many thanks