[guadec-web] Enhanced schedule table styling

[Oliver Gutiérrez <ogutierrez src gnome org>]

commit 3c39650405f02d29f7364cf70fe822caf07a351d
Author: Oliver Gutierrez <ogutsua gmail com>
Date:   Tue May 29 17:23:44 2018 +0100

    Enhanced schedule table styling

 content/pages/schedule.md |  3 ++-
 src/sass/screen.sass      | 11 ++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/content/pages/schedule.md b/content/pages/schedule.md
index 70eae3e..75a9a5b 100644
--- a/content/pages/schedule.md
+++ b/content/pages/schedule.md
@@ -7,7 +7,8 @@ We're putting the detailed talk schedule together right now. In the mean time,
 this is a rough outline of what events to expect on which days at GUADEC this
 year:
 
-<div style="overflow: auto;">
+
+<div class="table-responsive">
     <table class="table table-striped table-bordered schedule">
         <thead class="thead-dark">
             <tr>
diff --git a/src/sass/screen.sass b/src/sass/screen.sass
index cdd3332..2850e3f 100644
--- a/src/sass/screen.sass
+++ b/src/sass/screen.sass
@@ -55,9 +55,18 @@ blockquote
     padding: 20px 30px
 
 table
+    thead
+        th
+            text-align: center
+
     tr
-        td
+        td, th
             padding: 5px 20px
+            vertical-align: middle !important
+
+    &.schedule
+        td
+            text-align: center
 
 img
     max-width: 100%