diff --git a/src/repixelizer/gui_static/styles.css b/src/repixelizer/gui_static/styles.css
index 6ffad0d..7174e85 100644
--- a/src/repixelizer/gui_static/styles.css
+++ b/src/repixelizer/gui_static/styles.css
@@ -854,7 +854,16 @@ p {
 }
 
 .zoom-block {
-  min-width: 180px;
+  min-width: 0;
+  width: min(100%, 180px);
+}
+
+.zoom-block input[type="range"] {
+  display: block;
+  max-width: 100%;
+  min-height: 24px;
+  margin: 0;
+  padding: 0;
 }
 
 .editor-stage {