Bug 1409413 - Make sure text in the Console command line is v-centered; r=nchevobbe

MozReview-Commit-ID: 7TuLSPfzJ6k

--HG--
extra : rebase_source : c1705020e3c0ed6a93850dbca945315c4f041b6f

devtools/client/themes/webconsole.css

@@ -416,6 +416,7 @@ html #webconsole-notificationbox {
   background-size: 16px 16px;
   background-position: 4px 50%;
   color: var(--theme-content-color1);
+  box-sizing: border-box;
 }
 
 .jsterm-complete-node {