create boundaries (bottom only)

style/_write.scss

@@ -4,9 +4,11 @@
 	
 	#editor_container {
 		
-		padding:1em;
+		border: 1em solid #EDE0D0;
+		border-radius: 0.5em;
 		height: calc(100% - 4em);
 		overflow: hidden;
+		position:relative;
 		
 		#editor_content {
 			
@@ -23,6 +25,24 @@
 				}
 			}
 		}
+	
+		.shade {
+			position: absolute;
+			width: 100%;
+			background:red;
+			
+			&.top {
+				top:0;
+			}
+			
+			&.bottom {
+				bottom:0;
+			}
+			&.bottomplus {
+				top:100%;
+				height:2em;
+			}
+		}
 	}
 }