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WRSC Presentation Boo background: #DDDDDD; padding: 0 0px 0 0px; /* this padding matches the left alignment of the elements in the divs that appear beneath it. If an image is used in the #header instead of text, you may want to remove the padding. / } .oneColFixCtrHdr #header h1 { margin: 0; / zeroing the margin of the last element in the #header div will avoid margin collapse - an unexplainable space between divs. If the div has a border around it, this is not necessary as that also avoids the margin collapse / padding: 5px 0; / using padding instead of margin will allow you to keep the element away from the edges of the div / } .oneColFixCtrHdr #mainContent { padding: 0 6px 12px 6px; / remember that padding is the space inside the div box and margin is the space outside the div box / background: #FFFFFF; vertical-align: top; } .oneColFixCtrHdr #footer { padding: 0 10px; / this padding matches the left alignment of the elements in the divs that appear above it. / background:#DDDDDD; } .oneColFixCtrHdr #footer p { margin: 0; / zeroing the margins of the first element in the footer will avoid the possibility of margin collapse - a space between divs / padding: 10px 0; / padding on this element will create space, just as the the margin woul