diff --git a/Userland/Libraries/LibWeb/CSS/Default.css b/Userland/Libraries/LibWeb/CSS/Default.css
index fe344c4b90a..636badd69fa 100644
--- a/Userland/Libraries/LibWeb/CSS/Default.css
+++ b/Userland/Libraries/LibWeb/CSS/Default.css
@@ -79,6 +79,7 @@ input[type=range]::-webkit-slider-runnable-track, input[type=range]::-webkit-sli
 }
 input[type=range]::-webkit-slider-runnable-track {
     height: 4px;
+    width: 100%;
     margin-top: 6px;
     background-color: AccentColor;
     border: 1px solid rgba(0, 0, 0, 0.5);