
.postthis is the cs part that controls your post layout and style, it must contains few css properties like the following..post { margin: 0 0 40px 0; width: 90% }Now we want to add the separator css properties between the opening and closing tags, { and }
background: url(Separator-Image-Url); background-repeat: no-repeat; background-position: bottom center; margin:.5em 0 1.5em; padding-bottom:2.5em;And here is what you need to change in above code to customize it to your blog.Separator-Image-Url
.post{ margin: 0 0 40px 0; width: 90%; background: url(http://www.imagehost.com/separator.jpg); background-repeat: no-repeat; background-position: bottom center; margin:.5em 0 1.5em; padding-bottom:2.5em; }