body{text-align:center;background: gray;color: white;}

.a{
background: white;
color:black;padding: 10px 10px;margin: 10px 10px;
line-height: 2;
font-size:2em;}

.b{
background: white;
color:blue;padding: 10px 10px;margin: 10px 10px;
line-height: 2;
font-size:2em;}

p.g{background: green;font-size:2em;
	color: white;width: auto;
  margin-left: auto;
  margin-right: auto;
}

p.r{background: red;
	color: white;width: 170px;
  margin-left: auto;
  margin-right: auto;
}

table{margin-left: auto;
  margin-right: auto;

}

td{font-size:2em;
    border: 1px green none;
}

input, b, select{
font-size:2em;

}