body {
  text-align: center;
}

textarea {
  color:white;
  min-width: 100%;
  min-height:500px; 
  width: 100%
  border : 2px solid #202021; 
  border-radius: 2px;
  float: left;
  overflow: auto;
  margin: auto;
  display: inline-block;
  background: #444444;
  outline: 2px solid black;
  font-family: Courier, sans-serif;
  font-size: 14px;
  resize: none;

}

#header{
        position:fixed;
        width:100%;
        z-index: 999;
      }
iframe {
  width: 100%;
  height: 100%;
}
::-webkit-scrollbar {
    width: 8px;
}
 
::-webkit-scrollbar-track {
    -webkit-box-shadow: rgb(229, 230, 232); 
    
}
 
::-webkit-scrollbar-thumb {
    border-radius: 2px;
    background: #e2e2e2
}
textarea::-webkit-input-placeholder {
color: #ffffff;
text-align: center;
text-shadow: 1px 1px #e0e0e0;
font-size: 2.5vw;
font-weight: bold;
vertical-align: center;
  line-height: 490px;
  opacity: 0.5;
}
textarea::-webkit-input-text {

  color:white;
}