diff --git a/frontend/src/components/ShuffleCodeEditor.jsx b/frontend/src/components/ShuffleCodeEditor.jsx
index e7c38087..5afb4bd3 100644
--- a/frontend/src/components/ShuffleCodeEditor.jsx
+++ b/frontend/src/components/ShuffleCodeEditor.jsx
@@ -29,6 +29,7 @@ import PaperComponent from "../components/PaperComponent.jsx";
 
 import CodeMirror from '@uiw/react-codemirror';
 import 'codemirror/keymap/sublime';
+import 'codemirror/addon/selection/mark-selection.js'
 import 'codemirror/theme/gruvbox-dark.css';
 import 'codemirror/theme/duotone-light.css';
 import { padding, textAlign } from '@mui/system';
@@ -258,7 +259,7 @@ const CodeEditor = (props) => {
 					var correctVariable = allVariable.includes(variable_occurence[occ].toLowerCase())
 					// console.log(actionlist)
 					if(!correctVariable) {
-						value.markText({line:i, ch:dollar_occurence[occ]}, {line:i, ch:dollar_occurence_len[occ]+dollar_occurence[occ]}, {"css": "background-color: #f86a3e; padding-top: 2px; padding-bottom: 2px; color: white"})
+						value.markText({line:i, ch:dollar_occurence[occ]}, {line:i, ch:dollar_occurence_len[occ]+dollar_occurence[occ]}, {"css": "background-color: rgb(248, 106, 62, 0.9); padding-top: 2px; padding-bottom: 2px; color: white"})
 					}
 					else{
 						value.markText({line:i, ch:dollar_occurence[occ]}, {line:i, ch:dollar_occurence_len[occ]+dollar_occurence[occ]}, {"css": "background-color: #8b8e26; padding-top: 2px; padding-bottom: 2px; color: white"})
@@ -444,6 +445,7 @@ const CodeEditor = (props) => {
 						// highlight_variables(value)
 					}}
 					options={{
+						styleSelectedText: true,
 						theme: codeTheme,
 						keyMap: 'sublime',
 						mode: 'javascript',
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 0dacdc00..4188b885 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -16,4 +16,18 @@ code {
 .cm-tab::before{
   content: "———";
   margin-right: -13px;
+}
+
+/* .cm-string{
+  z-index: -1;
+}
+
+.CodeMirror-selected{
+  background-color: #007500 !important;
+  z-index: 100 !important;
+} */
+
+.CodeMirror-selectedtext{
+  background-color: rgba(28, 47, 69, 0.6) !important;
+  color: rgb(255, 255, 255) !important;
 }
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