Index: src/wp-content/themes/twentyseventeen/assets/css/ie8.css
===================================================================
--- src/wp-content/themes/twentyseventeen/assets/css/ie8.css	(revision 39095)
+++ src/wp-content/themes/twentyseventeen/assets/css/ie8.css	(working copy)
@@ -60,6 +60,11 @@
 	overflow: hidden;
 }
 
+.has-header-image.twentyseventeen-front-page .custom-header,
+.has-header-image.home.blog .custom-header {
+	display: block;
+}
+
 .custom-header-image {
 	background-position: bottom center;
 }
@@ -68,6 +73,17 @@
 	padding: 45px 0;
 }
 
+.has-header-image.twentyseventeen-front-page .site-branding,
+.has-header-image.home.blog .site-branding {
+	bottom: 0;
+	display: block;
+	left: 0;
+	height: auto;
+	padding-top: 0;
+	position: absolute;
+	width: 100%;
+}
+
 .has-header-image .custom-header-image img,
 .has-header-image .custom-header-image video {
 	left: 0;
@@ -193,6 +209,12 @@
 
 /* RTL Styles */
 
+.rtl .has-header-image.twentyseventeen-front-page .site-branding,
+.rtl .has-header-image.home.blog .site-branding {
+	left: auto;
+	right: 0;
+}
+
 .rtl .entry-footer .cat-links,
 .rtl .entry-footer .tags-links {
 	padding-right: 0;
Index: src/wp-content/themes/twentyseventeen/style.css
===================================================================
--- src/wp-content/themes/twentyseventeen/style.css	(revision 39095)
+++ src/wp-content/themes/twentyseventeen/style.css	(working copy)
@@ -1542,6 +1542,7 @@
 .site-header {
 	background-color: #fafafa;
 	position: relative;
+	overflow: hidden;
 }
 
 /* Site branding */
@@ -1565,11 +1566,6 @@
 	opacity: 0.7;
 }
 
-.has-header-image.twentyseventeen-front-page .site-branding,
-.has-header-image.home.blog .site-branding {
-	align-self: flex-end;
-}
-
 .site-title {
 	clear: none;
 	font-size: 24px;
@@ -1639,9 +1635,11 @@
 
 .has-header-image.twentyseventeen-front-page .custom-header,
 .has-header-image.home.blog .custom-header {
-	display: flex;
+	display: table;
+	height: 100%;
 	min-height: 300px;
 	min-height: 75vh;
+	width: 100%;
 }
 
 .custom-header-image {
@@ -1702,6 +1700,13 @@
 	padding: 5% 0;
 }
 
+.has-header-image.twentyseventeen-front-page .site-branding,
+.has-header-image.home.blog .site-branding {
+	display: table-cell;
+	height: 100%;
+	vertical-align: bottom;
+}
+
 /*--------------------------------------------------------------
 ## Front Page
 --------------------------------------------------------------*/
@@ -3241,6 +3246,9 @@
 	.has-header-image.twentyseventeen-front-page .site-branding,
 	.has-header-image.home.blog .site-branding {
 		bottom: 0;
+		display: block;
+		left: 0;
+		height: auto;
 		padding-top: 0;
 		position: absolute;
 		width: 100%;
@@ -3248,6 +3256,7 @@
 
 	.has-header-image.twentyseventeen-front-page .custom-header,
 	.has-header-image.home.blog .custom-header {
+		display: block;
 		min-height: 0;
 	}
 
@@ -3549,7 +3558,6 @@
 		height: 100vh;
 		max-height: 100%;
 		overflow: hidden;
-		/* padding: 10% 0; */
 	}
 
 	.twentyseventeen-front-page.has-header-image .custom-header-image:before,