h1 {text-align: center;}

h2 {text-align: left;}

h3 {text-align: left;}

body {background: white;}

table {border-collapse: collapse; border: 1px solid #000;}

th {border: 1px solid #000;}

td {border: 1px solid #000;}

.vector {font-weight: bold; font-style: italic;}

.scalar {font-style: italic;}