:root {
     --zenburn-fg-plus-2: #FFFFEF;
     --zenburn-fg-plus-1: #F5F5D6;
     --zenburn-fg: #DCDCCC;
     --zenburn-fg-1: #A6A689;
     --zenburn-fg-2: #656555;
     --zenburn-black: #000000;
     --zenburn-bg-2: #000000;
     --zenburn-bg-1: #111112;
     --zenburn-bg-05: #383838;
     --zenburn-bg: #2A2B2E;
     --zenburn-bg-plus-05: #494949;
     --zenburn-bg-plus-1: #4F4F4F;
     --zenburn-bg-plus-2: #5F5F5F;
     --zenburn-bg-plus-3: #6F6F6F;
     --zenburn-red-plus-2: #ECB3B3;
     --zenburn-red-plus-1: #DCA3A3;
     --zenburn-red: #CC9393;
     --zenburn-red-1: #BC8383;
     --zenburn-red-2: #AC7373;
     --zenburn-red-3: #9C6363;
     --zenburn-red-4: #8C5353;
     --zenburn-red-5: #7C4343;
     --zenburn-red-6: #6C3333;
     --zenburn-orange: #DFAF8F;
     --zenburn-yellow: #F0DFAF;
     --zenburn-yellow-1: #E0CF9F;
     --zenburn-yellow-2: #D0BF8F;
     --zenburn-green-5: #2F4F2F;
     --zenburn-green-4: #3F5F3F;
     --zenburn-green-3: #4F6F4F;
     --zenburn-green-2: #5F7F5F;
     --zenburn-green-1: #6F8F6F;
     --zenburn-green: #7F9F7F;
     --zenburn-green-plus-1: #8FB28F;
     --zenburn-green-plus-2: #9FC59F;
     --zenburn-green-plus-3: #AFD8AF;
     --zenburn-green-plus-4: #BFEBBF;
     --zenburn-cyan: #93E0E3;
     --zenburn-blue-plus-3: #BDE0F3;
     --zenburn-blue-plus-2: #ACE0E3;
     --zenburn-blue-plus-1: #94BFF3;
     --zenburn-blue: #8CD0D3;
     --zenburn-blue-1: #7CB8BB;
     --zenburn-blue-2: #6CA0A3;
     --zenburn-blue-3: #5C888B;
     --zenburn-blue-4: #4C7073;
     --zenburn-blue-5: #366060;
     --zenburn-magenta: #DC8CC3;
 }
 
 * {
     box-sizing: border-box;
 }
 body, html {
     margin: 0;
     padding: 0;
 }
 
 body {
     --background: var(--zenburn-bg);
     --heading-background: var(--zenburn-bg-1);
     --foreground: var(--zenburn-fg);
     --accent: var(--zenburn-green);
     --accent-1: var(--zenburn-green-1);
     --accent-2: var(--zenburn-green-2);
     --accent-3: var(--zenburn-green-3);
     --accent-4: var(--zenburn-green-4);
     --accent-5: var(--zenburn-green-5);
     --link: var(--zenburn-blue);
     --visited: var(--zenburn-blue-3);
 }
 
 body {
     background: var(--background);
     color: var(--foreground);
 }
 h1,h2,h3,h4,h5,h6 {
     background: var(--heading-background);
     border-bottom: currentcolor;
 }
 h1 {color: var(--accent);}
 h2 {color: var(--accent-1);}
 h3 {color: var(--accent-2);}
 h4 {color: var(--accent-3);}
 h5 {color: var(--accent-4);}
 h6 {color: var(--accent-5);}
 a {color: var(--link);}
 a:visited {color: var(--visited);}
 
 h1,h2,h3,h4,h5,h6 {
     padding: 0.5rem 1rem;
     font-family: sans-serif;
     font-size: 16px;
     margin: 0;
     margin-bottom: 0.5em;
     border: 0.1em;
     border-bottom: solid;
 }
 
 body {
     display: grid;
     grid-template-areas: 'header header header header header'
                          'header header header header header'
                          'toc    main   main   main   main  '
                          'toc    main   main   main   main  '
                          'toc    main   main   main   main  '
                          'footer footer footer footer footer';
     grid-gap: 0.1rem;
     min-height: 100vh;
     width: 100vw;
 }
 
 body > #content {
     display: contents;
 }
 #content > .title {
     grid-area: header;
     border: none;
     background: transparent;
     display: flex;
     justify-content: center;
     align-items: center;
     font-size: 2rem;
     padding: 0;
 }
 #content > #table-of-contents {
     grid-area: toc;
 }
 #content > .outline-2 {
     grid-area:  span 4;
 }
 body > #postamble {
     grid-area: footer;
     display: flex;
     justify-content: space-between;
     padding: 0.25em 0.5em;
 }