Retrospring/app/assets/stylesheets/_utilities.scss

.ios-web-app {
  padding-top: 1em;
}

.fs-10 {
  font-size: 10em;
}

.fs-7 {
  font-size: .8rem;
}

.pe-none {
  pointer-events: none;
}

.empty:not(:only-child) {
  display: none;
}

.pull-right {
  float: right;
}

.pull-left {
  float: left;
}