panel style

apps/remix-ide/src/app/components/panel.js

@@ -13,6 +13,7 @@ const css = csjs`
   }
   .plugItIn > div {
     overflow-y     : auto;
+    overflow-x     : hidden;
     height         : 100%;
     width          : 100%;
   }

apps/remix-ide/src/app/tabs/styles/run-tab-styles.js

@@ -53,6 +53,7 @@ var css = csjs`
   .select {
     font-weight: normal;
     width: 100%;
+    overflow: hidden;
   }
   .instanceContainer {
     display: flex;