[message_box bg=”http://flatsome.uxthemes.com/wp-content/uploads/temp.gif”] This is a Message box shortcode! Add anything here [/message_box]
[message_box bg="http://imageurl/#hex"]
  This is a Message box shortcode! Add anything here [button text='Learn more' link='http://' style='small alt-button white'] 
[/message_box]