.box-container {
  width: 232px;
}

.box-container div {
  float: left;
  height: 50px;
  margin-bottom: 8px;
  margin-right: 8px;
  overflow: hidden;
  width: 50px;
}

/* 実際にフェードインさせる要素 */
.box-container div p {
  background: #097;
  box-sizing: border-box;
  color: #fff;
  display: none;
  font-size: 20px;
  height: 100%;
  margin: 0;
  padding-top: 14px;
  text-align: center;
  width: 100%;
}

.clearfix:after {
  clear: both;
  content: '';
  display: block;
}