No worries, when you need it, we can provide the code, you only need to paste it in. :)
1. More specific please.
2. More specific please.
3. Looks like you figured it out:
#container, #breadcrumbs, #twitter-feed {
box-shadow: none;
}But, you’ll want to make sure to add new CSS to your theme options (https://startupwp.com/topic/customizing-your-theme/) or they’ll be overwritten next time you upgrade.
4. Use:
#social {
margin-top: 10%;
}