diff --git a/src/renderer/style.less b/src/renderer/style.less
index fd5d7b6b..d0d3002b 100644
--- a/src/renderer/style.less
+++ b/src/renderer/style.less
@@ -1017,15 +1017,6 @@ input[type=range].web-slider::-webkit-slider-runnable-track {
   -webkit-app-region: no-drag;
   height: auto;
 
-  &.collapseLibrary {
-    .md-btn {
-      font-family: "codicon";
-      font-size: 1em;
-      padding: 5px 12px;
-      background: transparent;
-      border: 0;
-    }
-  }
 
   &.generic {
     width: 50px;