Layout problem when right modules change

Hi! I hope you can help me with this small issue. When I publish a Jomsocial Event module in the right position the header module disappears and the layout for the login pop-up also changes. I'm now trying with Joomla 3 but I had also the same problem with Joomla 2.5. The website is cocinando.rotoydescosio.es

Thanks!

Open: /components/com_community/assets/modules/module.css

Remove:

Code: Select all

.clear {
    clear: both;
    font-size: 0 !important;
    height: 0 !important;
    line-height: 0 !important;
}


Thanks a lot Don! Definitely I must learn more about css... Do you recommend any book/website adapted to Joomla?

Hi buddy,

I don't think that I know books to recommend you, my knowledge has been built by experiencing making sites and templates. You may check out Firebug, this is a really helpful tool to work with CSS.