.hentry {
  .single & {
    margin-bottom: 30px;
  }
}

.hentry header {
  .entry-title {
    margin-top: 0;

    .single & {
      margin-top: 20px;
    }
  }
}

.hentry .entry-meta {
  margin-bottom: 20px;
  background-color: @gray-lighter;

  .updated {
    margin-left: 4px;
    line-height: 24px;
  }

  .addthis_sharing_toolbox {
    margin: 4px 2px 0 0;
  }
}

.hentry .entry-summary {
  margin-bottom: 20px;
}

.hentry {
  margin-bottom: 10px;

  .single & {
    margin-bottom: 30px;
  }
}

.hentry header {
  .entry-title {
    margin-top: 0;

    .single & {
      margin-top: 20px;
    }
  }
}

.hentry .entry-meta {
  margin-bottom: 20px;
  background-color: @gray-lighter;

  .updated {
    margin-left: 4px;
    line-height: 24px;
  }

  .addthis_sharing_toolbox {
    margin: 4px 2px 0 0;
  }
}

.hentry .entry-summary {
  margin-bottom: 20px;
}

Add a margin to the bottom of posts
Add a margin to the bottom of posts
