I encountered a problem where, in the following code-example a space is displayed between the red and black blocks.
Live: http://jsfiddle.net/WF5Ua/
I tried to change position, margin and etc., but I couldn't solve the trouble.
.slider {
height:594px;
width:100%;
background-color:#eb5055;
border-bottom:6px solid #ea676b;
clear:both;
}