How to get rid of Dotted lines between posts

Go to Customize Click Edit HTML, Look under the post area and you will find the following..

.post {

margin:.5em 0 1.5em;

border-bottom:1px dotted $bordercolor;

padding-bottom:1.5em;

}

Now all you need to do is change the 1px to 0px

Preview before Saving template.

Any problems, give me a shout.