body {
  background-color: lightgray;  /* 背景の色 */
}

.container {
  margin: 12px;
}

header h1 {
	font-size: 60px;
  font-weight: bold;

  height: 10rem;
  display: flex;            /* Flexbox形式 */
  justify-content: center;  /* Flexbox:中央揃え */
  align-items: center;

  color: transparent;	
	text-shadow:
	2px 4px 0px rgba(255, 255, 255, 0.5), 
	0 0 0 rgba(0, 0, 0, 0.4);

}