@font-face {
    font-family: 'DOS';
    font-style: normal;
    font-weight: 400;
    src: url(dos.ttf) format('truetype');
}

A {
    text-decoration: none; 
   } 

A:hover { 
	background: #4682B4; 
   } 

body {
	font-family: 'DOS', monospace;
    letter-spacing: 1px;
	font-size: 16px;
	color: white;
   background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAQBAMAAAFBYXjmAAAAMFBMVEUTExP///8CAgIDAwMEBAQFBQUGBgYHBwcICAgJCQkKCgoLCwsMDAwNDQ0ODg4PDw+5jhzRAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAGUlEQVQI12NgQAGCUMjIyICCcQEBICSBBAA0YgFNdKaWnQAAAABJRU5ErkJggg=='); 
}
	
html, body {
  padding: 0;
  margin: 0;
}

.screen {
  padding: 0;
  border-bottom: 2px solid black;
  border-top: 2px solid black;
}
.screen:first-child {
  border-top: none;
}

.win {
  max-width: 65%;
  min-width: 300px;
  margin: 40px auto;
  padding: 50px 60px;
  box-shadow: 20px 20px 0 0 rgba(0, 0, 0, 0.8);
  position: relative; 
}

.dos3 .win:before, .dos3 .win:after {
  content: " ";
  position: absolute;
  border: 1px solid #2efffe;
  z-index: 1;
  top: 20px;
  bottom: 20px;
  left: 20px;
  right: 20px;
}
.dos3 .win:after {
  top: 22px;
  bottom: 22px;
  left: 22px;
  right: 22px;
}
.dos3 .win .caption {
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 2;
}

.dos3 .win .caption .title {
  display: inline-block;
  padding-left: 0.8em;
  padding-right: 0.6em;
}
.dos3 .win strong {
  font-weight: normal;
}
.dos3 .win.blue-theme {
  color: #2efffe;
  background-color: #180099;
}
.dos3 .win.blue-theme:before, .dos3 .win.blue-theme:after {
  border-color: #2efffe;
}
.dos3 .win.blue-theme .caption .title {
  background-color: #180099;
}
.dos3 .win.blue-theme a {
  color: #2efffe;
}
.dos3 .win.blue-theme strong {
  color: #fcff55;
}

.horizontal-menu {
  display: flex;
  align-items: center; 
  background-color: transparent;
  padding: 10px 0;
  text-transform: uppercase;
  color: white; 
}

.horizontal-menu a {
  text-decoration: none;
  padding: 2px 2px; 
}

.horizontal-menu a:hover {
  color: #ffffcc; 
}

.horizontal-menu,
.caption,
.screen,
.dos3,
.win {
  position: relative; 
}

.horizontal-menu {
  z-index: 2; 
}

.caption {
  z-index: 2; 
}

.screen {
  z-index: 0; 
}

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


textarea {
   width: 100%;
   height: 220px;
   font-family: 'DOS', monospace;
   font-size: 16px;
   color: black;
   background: white; 
   border: 1px solid #008000;
   resize: none;
}

input {
   font-family: 'DOS', monospace;
   font-size: 16px;
   color: black;
   background: white; 
   border: 1px solid #008000;
}