*
{
	box-sizing:border-box;
	margin:0;
	outline:0;
	padding:0;
}
*:focus
{
	outline:1px dotted black;
}
body
{
	color:black;
}
button
{
	background-color:lightgray;
}
button:active
{
	background-color:silver;
}
button
{
	cursor:pointer;
	padding:.25em;
}