body {
  max-width: 40em;
  margin: auto;
}

h1,h2,h3,h4,h5,h6 { margin-bottom: 0; }
h1 + p { margin-top: .5em; }
h2 + p { margin-top: 0; }
h3 + p { margin-top: 0; }
h4 + p { margin-top: 0; }

.shoutbox { 
  padding-left: 1em;
  padding-right: 1em;
  border: thick solid red;
}