styles.css

@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');

*{
	padding: 0;
	margin: 0;
	box-sizing: border-box;
}

body{
	height: 100vh;
	display: flex;
}
.container{
	background: #E7E7E7;
	display: flex;
	flex-direction: column;
	width: 50%;
	height: 100vh;
	margin: 3px;

}
.container textarea {
	resize: none;
	width: 100%;
	height: 33.333%;
	font-size: 1.4rem;
	padding: 10px;
	resize: vertical;
	overflow-y: scroll;
}
.container textarea:focus {
	outline: none;
}
.iframe-container{
	background: white;
	width: 50%;
	height: 100vh;
	margin: 3px;
}
#viewer{
	width: 100%;
	height: 100%;
}
.split {
  width:100%;
  height:100%;
}
.gutter {
  cursor: e-resize;
  height: 100%;
  background: grey;
}
.gutter.gutter-horizontal {
    cursor: ew-resize;
}