th{
text-align: center;
	border: groove;
	width: 70px;
	background-color:white;
	color: black;
	font-weight: normal;
	font-size: 20px;
	padding: 3px;
}


input {
	font-size: 15px;
	font-weight: bold;
	width: 135px;
	margin: 3px;
	text-align: center;
}



table{
	cellpadding:10px;
	border-collapse: collapse;
	margin: 10px;

}
table td{
	border: groove;
	width:180px;
	text-align: center;
    height: 50px;
}


#canvas {
    background-color: White;
	border: groove;
	border-color : black;
    width: 510px;
    
}


table tr:nth-child(odd){
  background-color:#D3E0FF;
}

@media screen and (min-width: 780px) {

.wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 10px;
  grid-auto-rows: minmax(70px, auto);
}

.zero {
  grid-column: 1/3;
  grid-row: 1;
}
.one {
  grid-column: 1;
  grid-row: 2;
}
.two { 
  grid-column: 2;
  grid-row: 2 ;
}
.three {
  grid-column: 1;
  grid-row: 3 ;
}
.four {
  grid-column: 2;
  grid-row: 3;
  
}
}