diff --git a/stylesheets/_recorder.scss b/stylesheets/_recorder.scss
index 23290379..22f2f76b 100644
--- a/stylesheets/_recorder.scss
+++ b/stylesheets/_recorder.scss
@@ -17,7 +17,7 @@
     &:before {
       content: '';
       display: inline-block;
-      height: 100%;
+      height: 24px;
       width: 24px;
       @include color-svg('/images/microphone.svg', $grey);
     }
diff --git a/stylesheets/manifest.css b/stylesheets/manifest.css
index e5fe13ac..ad1b52ff 100644
--- a/stylesheets/manifest.css
+++ b/stylesheets/manifest.css
@@ -586,7 +586,7 @@ input[type=text]:active, input[type=text]:focus, input[type=search]:active, inpu
     .capture-audio .microphone:before {
       content: '';
       display: inline-block;
-      height: 100%;
+      height: 24px;
       width: 24px;
       -webkit-mask: url("/images/microphone.svg") no-repeat center;
       -webkit-mask-size: 100%;