body {
	font-family:	arial, sans-serif;
	font-size:	100%;
}

img {
	display:	block;
	margin:		auto;
	width:		100%;
}

/* from: https://www.w3schools.com/html/tryit.asp?filename=tryhtml_table_intro */
table {
    border-collapse:	collapse;
    /* width:		100%; */
}

td, th {
    border:		1px solid #dddddd;
    text-align:		left;
    /* padding:		8px; */
}

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

/* END OF: from: https:// ... */

h1 {
	text-align:	center;
}

/* https://www.granneman.com/webdev/coding/css/centertables */
table.center {
	margin-left:	auto;
	margin-right:	auto;
}

/* for header */
ul.nav {
	list-style_type: none;
	margin: 0;
	padding: 0;
}

ul.nav li {
	display: inline;
}