body{background-color:darkslategray;}
.calender {top:200px;
  height:400px;
  width:550px;
  margin:0 auto;
  padding:3px;}
  .calendertit{height:400px;}
.dates{height:100%;
  display:grid;
grid-template-columns: auto auto auto auto auto auto auto;
}
.calender div{border:2px dotted red;}