.cl-b {
  clear: both;
}
.cl-l {
  clear: left;
}
.cl-r {
  clear: right;
}
.smaller {
  font-size: 0.875em;
}
.larger {
  font-size: 130%;
}
.no-margin {
  margin: 0;
}
.center {
  text-align: center;
}