/* 円の基本形 */
.miyatan__maru {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  flex-flow: column;
  vertical-align: top;
  width: 40px;
  height: 40px;
  background: #c60080;
  color: #fff;
  font-weight: bold;
}
.miyatan__maru div {
  font-size: 2em;
  line-height: 1em;
}