table{
  width: 100%;
  border-collapse:separate;
  border-spacing: 0;
}

table th:first-child{
  border-radius: 5px 0 0 0;
}

table th:last-child{
  border-radius: 0 5px 0 0;
  border-right: 1px solid #3c6690;
}

table th{
  text-align: center;
  color:white;
  background: linear-gradient(#829ebc,#225588);
  border-left: 1px solid #3c6690;
  border-top: 1px solid #3c6690;
  border-bottom: 1px solid #3c6690;
  box-shadow: 0px 1px 1px rgba(255,255,255,0.3) inset;
  padding: 10px 0;
}

table td{
  text-align: left;
  border-left: 1px solid #a8b7c5;
  border-bottom: 1px solid #a8b7c5;
  border-top:none;
  box-shadow: 0px -3px 5px 1px #eee inset;
  width: 25%;
  padding: 10px 10px 10px 10px;
}

table td:last-child{
  border-right: 1px solid #a8b7c5;
}

.month	{ font-weight:800;    }



.year {
font-weight:900;
  text-align: center;
  color:black;
  padding: 3px 3px 3px 3px;
}


h1 {
  color: #364e96;/*文字色*/
  border: solid 3px #364e96;/*線色*/
  padding: 0.5em;/*文字周りの余白*/
  border-radius: 0.5em;/*角丸*/
}