body {
  padding-bottom: 70px;
  line-height: 1.7;
}

.a-right {
  text-align: right;
}
.back-to-top {
  font-size: 12px;
  text-decoration: none;
  color: #d0d0d0;
}
.back-to-top:hover {
  color: #808080;
}

.post-date {
  display: inline-block;
  padding-left: 10px;
  font-size: 12px;
  color: #808080;
}