To set the container across the entire screen width and content on 970px follow the steps:
1. Open TemplateToaster.
2. In Container Tab Set Layout => Fluid, Width => 100%.
3. Now open General Tab => Click on CSS under Editors section, CSS Editor dialog will appear.
4. Write the bellow custom CSS Code in that editor:
margin: 0 auto;
float: none !important;
5. Click on Save.
6. Now export your theme.
Still if you have some issues/query regarding TemplateToaster. Please open a support ticket at https://templatetoaster.com/support
. And provide your website credentials or ttr file. Our support team will guide you accordingly.