Background images have gone away-?

This is my CSS

body{
background: url("Story/Objects/background.jpg") no-repeat center center fixed;
background-size: cover;
}

tw-sidebar {
background-image: url("Story/Objects/signboard1.jpg");
background-position: top left;
background-repeat: no-repeat;
width: 119px;
}

My images won't show. I changed the path from the web to a local folder and the pictures won't load. Idea's on how to fix this? I have a scheduled web launch in a few days...