Twenty Seventeen: Prevent too-long strings from causing horizontal scrolling.

Add a `max-width` to the site title, so too-long strings will wrap instead of causing horizontal scrolling. 

Props ianbelanger, dswebsme.
Fixes #46703.



git-svn-id: https://develop.svn.wordpress.org/trunk@45257 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentyseventeen/style.css

@@ -1646,6 +1646,7 @@ body.home.title-tagline-hidden.has-header-video .custom-logo-link img {
 
 body:not(.title-tagline-hidden) .site-branding-text {
 	display: inline-block;
+	max-width: 100%;
 	vertical-align: middle;
 }