add css for header subline.

chat/index.php

@@ -16,7 +16,7 @@ include '../header.php';
 <div class="block">
 <h1><em>chat</em></h1>
 <pre>
-envs.net has two chat options. we can be reached via irc and matrix.
+envs.net has two chat options. we can be reached via matrix and irc.
 
 <strong>rules / guidelines</strong>
 <em>please see the <a href="/chat/etiquette">etiquette guide</a>.</em>

css/css_style.css

@@ -34,6 +34,8 @@ footer {
 	padding-bottom: 4em;
 }
 
+#header_sub { margin-left: 6em; }
+
 #sidebar {
 	float: right;
 	padding: 0 2.5em 2.5em 0;

index.php

@@ -36,7 +36,7 @@ include 'header.php';
 
 <pre class="banner">
 <?php include 'banner_html.txt'; ?>
-        <small><em>environments - since 9/2019</em></small>
+<small class="header_sub"><em>environments - since 9/2019</em></small>
 
 </pre>