diff --git a/doc/CHANGES.md b/doc/CHANGES.md
index 6824d7846..aa6a6dc71 100644
--- a/doc/CHANGES.md
+++ b/doc/CHANGES.md
@@ -40,6 +40,7 @@ Change log
- add `getGridItems()` to return list of HTML grid items
- add `{dragIn | dragInOptions}` grid attributes to handle external drag&drop items
- add `save()` and `restore()` to serialize grids from JSON, saving all attributes (not just w,h,x,y) [1286](https://github.com/gridstack/gridstack.js/issues/1286)
+- fix [1299](https://github.com/gridstack/gridstack.js/pull/1299) many columns round-off error
## 1.1.2 (2020-05-17)
diff --git a/spec/e2e/html/810-many-columns.html b/spec/e2e/html/810-many-columns.html
index 6274248dc..3bfbc210d 100644
--- a/spec/e2e/html/810-many-columns.html
+++ b/spec/e2e/html/810-many-columns.html
@@ -8,11 +8,7 @@
-
-
-
-
-
+
@@ -30,8 +26,7 @@
Many Columns demo
let count = 0;
let options = {
column: COLUMNS,
- cellHeight: 'auto',
- float: false
+ cellHeight: 'auto'
};
let grid = GridStack.init(options);
diff --git a/src/gridstack.ts b/src/gridstack.ts
index df533475d..474f573ed 100644
--- a/src/gridstack.ts
+++ b/src/gridstack.ts
@@ -424,7 +424,7 @@ export class GridStack {
*/
public cellWidth(): number {
// TODO: take margin into account (horizontal_padding in .scss) to make cellHeight='auto' square ? (see 810-many-columns.html)
- return Math.round(this.el.offsetWidth / this.opts.column);
+ return this.el.offsetWidth / this.opts.column;
}
/**