* {

}
body {
  margin: 0;
  padding: 0;
  background-color: #000000;
}
.container {

}
.main {
  position: absolute;
  top: 40px;
  bottom: 40px;
  left: 40px;
  right: 40px;
  background-color: #000000;
  color: #ffffff;
  font-family: monospace;
  border: 1px solid #848484;
  border-radius: 5px;
  box-shadow: 0 0 35px 20px #424648;
  overflow: hidden;
}
.screen {
  margin: 30px;
}