diff --git a/adminer/file.inc.php b/adminer/file.inc.php
index 706030a2..d468b77f 100644
--- a/adminer/file.inc.php
+++ b/adminer/file.inc.php
@@ -50,9 +50,6 @@ if ($_GET["file"] == "favicon.ico") {
 		case "down.gif":
 			echo compile_file('../adminer/static/down.gif');
 			break;
-		case "arrow.gif":
-			echo compile_file('../adminer/static/arrow.gif');
-			break;
 	}
 }
 exit;
diff --git a/adminer/schema.inc.php b/adminer/schema.inc.php
index fb453388..f361f0fb 100644
--- a/adminer/schema.inc.php
+++ b/adminer/schema.inc.php
@@ -86,8 +86,7 @@ foreach ($schema as $name => $table) {
 			$left1 = $left - $table_pos[$name][1];
 			$i = 0;
 			foreach ($columns as $target) {
-				echo "\n<div class='references' title='" . h($target_name) . "' id='refd$left-" . ($i++) . "'"
-					. " style='left: $left1" . "em; top: " . $table["fields"][$target]["pos"] . "em; height: 1.25em; background: url(../adminer/static/arrow.gif) no-repeat right center;'>"
+				echo "\n<div class='references arrow' title='" . h($target_name) . "' id='refd$left-" . ($i++) . "' style='left: $left1" . "em; top: " . $table["fields"][$target]["pos"] . "em;'>"
 					. "<div style='height: .5em; border-bottom: 1px solid gray; width: " . (-$left1) . "em;'></div>"
 					. "</div>"
 				;
diff --git a/adminer/static/default.css b/adminer/static/default.css
index fe333ade..8a748078 100644
--- a/adminer/static/default.css
+++ b/adminer/static/default.css
@@ -86,6 +86,7 @@ input.wayoff { left: -1000px; position: absolute; }
 #schema { margin-left: 60px; position: relative; user-select: none; -webkit-user-select: none; }
 #schema .table { border: 1px solid silver; padding: 0 2px; cursor: move; position: absolute; }
 #schema .references { position: absolute; }
+#schema .arrow { height: 1.25em; background: url(arrow.gif) no-repeat right center; }
 #help { position: absolute; border: 1px solid #999; background: #eee; padding: 5px; font-family: monospace; z-index: 1; }
 
 .rtl h2 { margin: 0 -18px 20px 0; }
diff --git a/compile.php b/compile.php
index 7425f4ca..6d127f36 100755
--- a/compile.php
+++ b/compile.php
@@ -202,6 +202,9 @@ if (!$translations) {
 }
 
 function minify_css($file) {
+	$file = preg_replace_callback('~url\((\w+\.(gif))\)~', function ($match) {
+		return "url(data:image/$match[2];base64," . base64_encode(file_get_contents(__DIR__ . "/adminer/static/$match[1]")) . ")";
+	}, $file);
 	return lzw_compress(preg_replace('~\s*([:;{},])\s*~', '\1', preg_replace('~/\*.*?\*/\s*~s', '', $file)));
 }