table{
  border-spacing: 0;
  border-collapse: separate;
  border-radius: 22px;
  border: 2px solid black;
}

 @media only screen and (min-width: 800px) {
  /* For desktop: */
thead, th{
	font-size: 1.25em;
	font-weight:800;
	background-color: black;
	color:#fff;
	padding: 5px;
}
}
caption {
  caption-side: bottom;        /* caption to the bottom */
  background-color: #000;
  color: #fff;
  font-weight: 800;
  padding: 10px 8px;
  text-align: left;            /* or center, if you prefer */
  border-bottom-left-radius: 20px;  /* round corners like table */
  border-bottom-right-radius: 20px;
}

tbody, td{
	padding: 5px;
}

tr:nth-child(even){
	background-color: #f2f2f2;
}

tr:last-child td:last-child{
  border-bottom-right-radius:20px;
}

tr:last-child td:first-child{
	border-bottom-left-radius:20px;
}

tr:first-child th:first-child{
	border-top-left-radius:20px;
}

tr:first-child th:last-child{
	border-top-right-radius:20px;
}