Weebly Flexible Footer

Goto Design Tab ... this will show an edit htm/css under the thumnails on the right

Edit  main-style.css to include

#flexifooter{
 width: 100%;
 color: #888888;
 font-size: 15px;
 background: #2a2a2a;
 text-align: center;
 padding: 10px 10px 10px 10px;
 margin: 0px 0px 0px 0px;
}

Edit asll the PageLayouts to include
<div id="flexifooter">{flexifooter:content}</div>