.flag-wrapper {
  width: 100%;
  display: inline-block;
  position: relative;
  box-shadow: 0 0 2px black;
  overflow: hidden;
  margin-bottom: 20px;
}
.flag-wrapper:after {
  padding-top: 75%;
  /* ratio */
  display: block;
  content: '';
}
.flag-wrapper .flag {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
}
.no-wrap {
  white-space: nowrap;
  margin-bottom: 8px;
  overflow: hidden;
}
.all-flags .flag-icon-background {
  cursor: pointer;
}