.container {
      height: 100vh;
    }
body{
  background-color: #f2f2f2;
}
	.main {
		float: left;
		border:1px solid;
		height: 90vh;
		overflow-y: scroll;
		border-radius: 10px;
	}

    #content{
	  width: 80vw;
    background-color: white;
      /*max-height: 800px;*/
      margin-left: .000001vw;
    }

	#tool{
    float: left;
		width:15vw;
	}

	div:focus {
		outline: none;
		background-color: #EEEEEE;
	}