diff --git a/lib/ace/layer/cursor.js b/lib/ace/layer/cursor.js
index 9d688b57..79d768b5 100644
--- a/lib/ace/layer/cursor.js
+++ b/lib/ace/layer/cursor.js
@@ -127,8 +127,7 @@ var Cursor = function(parentEl) {
         if (!position)
             position = this.session.selection.getCursor();
         var pos = this.session.documentToScreenPosition(position);
-        var cursorLeft = Math.round(this.$padding +
-                                    pos.column * this.config.characterWidth);
+        var cursorLeft = this.$padding + pos.column * this.config.characterWidth;
         var cursorTop = (pos.row - (onScreen ? this.config.firstRowScreen : 0)) *
             this.config.lineHeight;
 
diff --git a/lib/ace/layer/marker.js b/lib/ace/layer/marker.js
index 7470bfd7..444ecdc3 100644
--- a/lib/ace/layer/marker.js
+++ b/lib/ace/layer/marker.js
@@ -78,9 +78,7 @@ var Marker = function(parentEl) {
             range = range.toScreenRange(this.session);
             if (marker.renderer) {
                 var top = this.$getTop(range.start.row, config);
-                var left = Math.round(
-                    this.$padding + range.start.column * config.characterWidth
-                );
+                var left = this.$padding + range.start.column * config.characterWidth;
                 marker.renderer(html, range, left, top, config);
             }
             else if (range.isMultiLine()) {
@@ -137,7 +135,7 @@ var Marker = function(parentEl) {
         // from selection start to the end of the line
         var height = config.lineHeight;
         var top = this.$getTop(range.start.row, config);
-        var left = Math.round(padding + range.start.column * config.characterWidth);
+        var left = padding + range.start.column * config.characterWidth;
 
         stringBuilder.push(
             "<div class='", clazz, " ace_start' style='",
@@ -149,7 +147,7 @@ var Marker = function(parentEl) {
 
         // from start of the last line to the selection end
         top = this.$getTop(range.end.row, config);
-        var width = Math.round(range.end.column * config.characterWidth);
+        var width = range.end.column * config.characterWidth;
 
         stringBuilder.push(
             "<div class='", clazz, "' style='",
@@ -182,12 +180,10 @@ var Marker = function(parentEl) {
         if (type === "background")
             var width = layerConfig.width;
         else
-            width = Math.round((range.end.column + (extraLength || 0) - range.start.column) * layerConfig.characterWidth);
+            width = (range.end.column + (extraLength || 0) - range.start.column) * layerConfig.characterWidth;
 
         var top = this.$getTop(range.start.row, layerConfig);
-        var left = Math.round(
-            padding + range.start.column * layerConfig.characterWidth
-        );
+        var left = padding + range.start.column * layerConfig.characterWidth;
 
         stringBuilder.push(
             "<div class='", clazz, "' style='",