html, body {
  padding: 0;
  margin: 0;
}
body {
  font-family: 'Courier New', monospace;
  font-weight: normal;
  font-size: 19px;
  background: #000000;
}
hr { color: #ffffff; }
.screen {
  padding: 0;
}
.screen:first-child {
  border-top: none;
}
.win {
  max-width: 83%;
  min-width: 430px;
  margin: 50px auto;
  padding: 50px 50px;
  position: relative; 
}
.tui-grey .win:before, .tui-grey .win:after {
  content: " ";
  position: absolute;
  z-index: 1;
  top: 20px;
  bottom: 20px;
  left: 20px;
  right: 20px;
}
.tui-grey .win:after {
  top: 22px;
  bottom: 22px;
  left: 22px;
  right: 22px;
}
.tui-grey .win .caption {
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 2;
}
.tui-grey .win .caption .title {
  display: inline-block;
  padding-left: 0.8em;
  padding-right: 0.6em;
}
.tui-grey .win strong {
  font-weight: normal;
}
.tui-grey .win.tui {
  color: #ffffff;
  background-color: #202020;
}
.tui-grey .win.tui:before, .tui-grey .win.tui:after {
  border-color: #ffffff;
}
.tui-grey .win.tui .caption .title {
  background-color: #202020;
}
a {
  color: #2AFA27;
  background-color: #202020;
}
.tui-grey .win.tui strong {
  color: #ffffff;
}
.horizontal-menu {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: transparent;
  padding: 0px 0;
  color: white;
}
.horizontal-menu * {
  margin: 0px;
}

.horizontal-menu a {
  color: #2ABA27;
  padding: 0px 15px; 
}
a, a:hover {
    text-decoration: none;
}
a:hover, .l_selected, a pre:hover {
    background-color: #2AFA27;
    color: #000000;
}
.horizontal-menu,
.caption,
.screen,
.tui-grey,
.win {
  position: relative; 
}
.horizontal-menu {
  z-index: 2; 
}
.caption {
  z-index: 2; 
}

.screen {
  z-index: 0; 
}

.contents,
.footer {
  position: relative;
  z-index: 2;
}

.fleft {float: left;}
.fright {float: right;}
.clear {clear: both;}

* html .fleft { float: none; }
* html .fright { float: none; }


ol li > span { opacity: 0.5; }
@media (max-width:1200px) {
	ol { column-count: 2 ; }
	ol > span { display: none; background-color: #FFFFFF;}
}
@media (min-width:1200px) {
	ol {
		display: grid;
		margin: 10px auto;
		padding-left:0;
		max-width: 1300px;
		border: 1px solid;
		grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
	}
	ol > li, ol > span {
		border: 1px solid;
		position: relative;
		list-style-position:
		inside; padding: 10px;
	}
	li > a, li > span {
		display: block;
		text-align: center;
		margin-bottom: 1rem;
	}
	ol > span { display: block; }
	ol > span:nth-child(-n + 7) { color: #000; background-color: #FFF; }
}


@media (max-width: 740px) {
  pre {
	box-sizing: border-box;
  }
  .win {
	padding: 50px 5px;
	margin: 5px 0;
	min-width: unset;
	max-width: 100%;
  }
  body {background-color: #202020;}
  .fleft, .fright {float: none;}
}