div.ThemeGrid_Container {
padding: 0px; width: 940px;
}
4. For the final step to adjust the screen layouts, identify the Web Blocks that are set in the Blank Screen/List Screen/Show Screen/Edit Screen properties of the Theme. For each Web Block do the following: 4.1. Open it and find the MainContent placeholder in it; 4.2. Set the placeholder Style property to “MainContent ThemeGrid_Container” (without the quotation marks). And that’s it. The Grid is on. To finalize, just a couple of notes: