Looks like you’re using a plugin or something to add styles to the css? Here is the exact code that is causing that issue –
.wrap, #dashboard-widgets .meta-box-sortables, .ui-buttonset {
margin: 0 !important;
}
That code is coming from this plugin – http://digimarketingstudio.com/wp-content/plugins/coming-soon-maintenance-mode-ready/css/adminStyles.css?ver=3.8