*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  background-color: #000;
}
.calendar-wrap{
  width: 744px;
  border: 1px solid #4C4D4F;
  border-radius: 4px;
  margin: 40px auto;
}
.head{
  height: 50px;
  border-bottom: 1px solid #363637;
  line-height: 50px;
  color: #E5EAF3;
  padding: 13px 20px;
}
#year, #month{
  font-size: 16px;
  line-height: 24px;
  float: left;
}
#year{
  margin-right: 4px;
}
.btn-wrap{
  float: right;
  border: 1px solid #4C4D4F;
  border-radius: 3px;
  overflow: hidden;
}
.btn-wrap span:hover{
  color:#409eff;
  background-color: #18222c;
}
#btn-previous, #btn-today{
  border-right: 1px solid #4C4D4F;
}
#btn-previous, #btn-today, #btn-next{
  display: block;
  float: left;
  cursor: pointer;
  line-height: 14px;
  padding: 5px 11px;
  font-size: 12px;
}
.content{
  padding: 12px 20px 35px;
}
.content .week{
  height: 46px;
}
.content .week div{
  float: left;
  width: 100px;
  height: 46px;
  line-height: 46px;
  text-align: center;
  color: #CFD3DC;
}
.content .date-number{
  border-top: 1px solid #363637;
  border-left: 1px solid #363637;
}
#number-wrap{
  overflow: hidden;
  list-style: none;
}
#number-wrap li{
  width: 100px;
  height: 87px;
  border-right: 1px solid #363637;
  border-bottom: 1px solid #363637;
  float: left;
  color: #E5EAF3;
  padding: 8px;
  font-size: 16px;
}
#number-wrap li:hover{
  color: #409eff;
  background-color: #18222c;
  cursor: pointer;
}
#number-wrap li.is-selected{
  background-color: #18222c;
  color: #1989fa;
}
#number-wrap li.is-today{
  color: #1989fa;
}
#number-wrap li.previous-box, #number-wrap li.next-box{
  color: #8D9095;
}