--- a/devtools/client/themes/webconsole.css
+++ b/devtools/client/themes/webconsole.css
@@ -401,16 +401,17 @@ a {
 
 .theme-firebug .jsterm-input-container {
   border-top: 1px solid #ccc;
 }
 
 .jsterm-input-node,
 .jsterm-complete-node {
   border: none;
+  padding: 0;
   padding-inline-start: 20px;
   margin: 0;
   -moz-appearance: none;
   background-color: transparent;
 }
 
 .jsterm-input-node[focused="true"] {
   box-shadow: var(--theme-focus-box-shadow-inset-bottom);