diff --git a/src/vs/editor/browser/controller/mouseTarget.ts b/src/vs/editor/browser/controller/mouseTarget.ts
index ff6bc23c170..0e21b9588b5 100644
--- a/src/vs/editor/browser/controller/mouseTarget.ts
+++ b/src/vs/editor/browser/controller/mouseTarget.ts
@@ -694,7 +694,7 @@ export class MouseTargetFactory {
 			return request.fulfill(MouseTargetType.CONTENT_EMPTY, pos, void 0, EMPTY_CONTENT_IN_LINES);
 		}
 
-		let visibleRange = ctx.visibleRangeForPosition2(lineNumber, column);
+		const visibleRange = ctx.visibleRangeForPosition2(lineNumber, column);
 
 		if (!visibleRange) {
 			return request.fulfill(MouseTargetType.UNKNOWN, pos);
@@ -706,33 +706,35 @@ export class MouseTargetFactory {
 			return request.fulfill(MouseTargetType.CONTENT_TEXT, pos);
 		}
 
-		let mouseIsBetween: boolean;
+		// Let's define a, b, c and check if the offset is in between them...
+		interface OffsetColumn { offset: number; column: number; }
+
+		let points: OffsetColumn[] = [];
+		points.push({ offset: visibleRange.left, column: column });
 		if (column > 1) {
-			let prevColumnHorizontalOffset = visibleRange.left;
-			mouseIsBetween = false;
-			mouseIsBetween = mouseIsBetween || (prevColumnHorizontalOffset < request.mouseContentHorizontalOffset && request.mouseContentHorizontalOffset < columnHorizontalOffset); // LTR case
-			mouseIsBetween = mouseIsBetween || (columnHorizontalOffset < request.mouseContentHorizontalOffset && request.mouseContentHorizontalOffset < prevColumnHorizontalOffset); // RTL case
-			if (mouseIsBetween) {
-				let rng = new EditorRange(lineNumber, column, lineNumber, column - 1);
+			const visibleRange = ctx.visibleRangeForPosition2(lineNumber, column - 1);
+			if (visibleRange) {
+				points.push({ offset: visibleRange.left, column: column - 1 });
+			}
+		}
+		const lineMaxColumn = ctx.model.getLineMaxColumn(lineNumber);
+		if (column < lineMaxColumn) {
+			const visibleRange = ctx.visibleRangeForPosition2(lineNumber, column + 1);
+			if (visibleRange) {
+				points.push({ offset: visibleRange.left, column: column + 1 });
+			}
+		}
+
+		points.sort((a, b) => a.offset - b.offset);
+
+		for (let i = 1; i < points.length; i++) {
+			const prev = points[i - 1];
+			const curr = points[i];
+			if (prev.offset <= request.mouseContentHorizontalOffset && request.mouseContentHorizontalOffset <= curr.offset) {
+				const rng = new EditorRange(lineNumber, prev.column, lineNumber, curr.column);
 				return request.fulfill(MouseTargetType.CONTENT_TEXT, pos, rng);
 			}
 		}
-
-		let lineMaxColumn = ctx.model.getLineMaxColumn(lineNumber);
-		if (column < lineMaxColumn) {
-			let nextColumnVisibleRange = ctx.visibleRangeForPosition2(lineNumber, column + 1);
-			if (nextColumnVisibleRange) {
-				let nextColumnHorizontalOffset = nextColumnVisibleRange.left;
-				mouseIsBetween = false;
-				mouseIsBetween = mouseIsBetween || (columnHorizontalOffset < request.mouseContentHorizontalOffset && request.mouseContentHorizontalOffset < nextColumnHorizontalOffset); // LTR case
-				mouseIsBetween = mouseIsBetween || (nextColumnHorizontalOffset < request.mouseContentHorizontalOffset && request.mouseContentHorizontalOffset < columnHorizontalOffset); // RTL case
-				if (mouseIsBetween) {
-					let rng = new EditorRange(lineNumber, column, lineNumber, column + 1);
-					return request.fulfill(MouseTargetType.CONTENT_TEXT, pos, rng);
-				}
-			}
-		}
-
 		return request.fulfill(MouseTargetType.CONTENT_TEXT, pos);
 	}
 
@@ -940,4 +942,4 @@ export class MouseTargetFactory {
 			hitTarget: null
 		};
 	}
-}
\ No newline at end of file
+}
diff --git a/src/vs/editor/common/view/overviewZoneManager.ts b/src/vs/editor/common/view/overviewZoneManager.ts
index 92759f72bbe..bb624485513 100644
--- a/src/vs/editor/common/view/overviewZoneManager.ts
+++ b/src/vs/editor/common/view/overviewZoneManager.ts
@@ -180,6 +180,7 @@ export class OverviewZoneManager {
 		const totalHeight = Math.floor(this.getCanvasHeight()); // @perf
 		const outerHeight = Math.floor(this._outerHeight); // @perf
 		const heightRatio = totalHeight / outerHeight;
+		const halfMinimumHeight = Math.floor(Constants.MINIMUM_HEIGHT * this._pixelRatio / 2);
 
 		let allColorZones: ColorZone[] = [];
 		for (let i = 0, len = this._zones.length; i < len; i++) {
@@ -199,8 +200,8 @@ export class OverviewZoneManager {
 			let ycenter = Math.floor((y1 + y2) / 2);
 			let halfHeight = (y2 - ycenter);
 
-			if (halfHeight < Constants.MINIMUM_HEIGHT / 2) {
-				halfHeight = Constants.MINIMUM_HEIGHT / 2;
+			if (halfHeight < halfMinimumHeight) {
+				halfHeight = halfMinimumHeight;
 			}
 
 			if (ycenter - halfHeight < 0) {