@font-face {
    font-family: 'BlackChancery';
    src: url('BlackChancery.woff2') format('woff2'),
        url('BlackChancery.woff') format('woff'),
        url('BlackChancery.ttf') format('truetype');
    font-weight: 100;
    font-style: normal;
    font-display: swap;
}

body {
    text-align: left;
    background-color: slategrey;
    font-family: Tahoma, Verdana, Arial, sans-serif;
}

h1, h2, h3 {
    color: yellow;
    font-family: BlackChancery;
/*    font-weight: 100; */
    font-style: bold;
}

h1 {
    text-align: center;
}

p {
    color: cyan;
}

hr {
    color: white;
}

a {
    font-weight: bold;
}

a:hover {
    color: white;
}

img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding: 30px;
/*  width: 40%;*/
}

.nav_bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.nav_button:link, .nav_button:visited {
    text-align: center;
    padding: 5px 10px;
    display: inline-block;
    border: 1px solid transparent;
    color: white;
}

.nav_button:hover, .nav_button:active {
    border: 1px solid white;
    color: yellow;
}

.center_column {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.center_block {
    text-align: left;
    width: 100%;
    max-width: 640px;
}

.footer {
    color: white;
    text-align: center;
    font-size: 10px;
}