Fix matchMedia queries

1 files changed, 2 insertions, 2 deletions

diff --git a/vnext/src/App.js b/vnext/src/App.js
index af364fe2..a519eedd 100644
--- a/vnext/src/App.js
+++ b/vnext/src/App.js
@@ -91,8 +91,8 @@ export default class App extends React.Component {
     history.push(location);
   }
   toggleSidebar = () => {
-    const isMobile = window.matchMedia('width < 62.5rem');
-    if (isMobile.matches) {
+    const isDesktop = window.matchMedia('(min-width: 62.5rem)');
+    if (!isDesktop.matches) {
       let width = this.sidebar.current.style.width;
       this.sidebar.current.style.width = width === '248px' ? '0' : '248px';
       let leftMargin = this.state.appMarginLeft === 'inherit' ? '250px' : 'inherit';