body{
  background-image: url("/greenscreen.gif");
  background-repeat: repeat;
  background-size: 300px 300px;
  color: #31F527;
  font-family: Verdana;
}
.container{
  display:flex;
  width:700px;
  height:700px;
  background:black;
  margin:0 auto;
}
.sidebar{
  width:300px;
  margin: 0 auto;
  padding:10px;
}
.main{
 display: flex;
 flex-direction:column;
 width:100%;
 margin: 0 auto;
 padding:25px;
}
div{
  background-color: Black;
}