Update information about browsers shipping CSS Grid Layout

Author: mrego

enable.html

@@ -44,7 +44,7 @@ <h1>Enable CSS Grid Layout</h1>
                         <img class="pull-left media-object" src="img/chrome.png" alt="Chrome logo">
                         <div class="media-body">
                             <h3 class="media-heading"><a href="https://www.google.com/intl/en/chrome/browser/">Chrome</a></h3>
-                            <p>Enable the flag called <strong>Enable experimental Web Platform features</strong> going to:<br><a href="chrome://flags/#enable-experimental-web-platform-features">chrome://flags/#enable-experimental-web-platform-features</a></p>
+                            <p>Enabled by default since version 57.</p>
                         </div>
                     </div>
                 </div>
@@ -53,7 +53,7 @@ <h3 class="media-heading"><a href="https://www.google.com/intl/en/chrome/browser
                         <img class="pull-left media-object" src="img/firefox.png" alt="Firefox logo">
                         <div class="media-body">
                             <h3 class="media-heading"><a href="https://mozilla.org/firefox">Firefox</a></h3>
-                            <p>Enable the flag called <strong>layout.css.grid.enabled</strong> going to:<br><a href="about:config">about:config</a></p>
+                            <p>Enabled by default since version 53.</p>
                         </div>
                     </div>
                 </div>
@@ -72,16 +72,16 @@ <h3 class="media-heading"><a href="http://windows.microsoft.com/en-us/internet-e
                         <img class="pull-left media-object" src="img/opera.png" alt="Opera logo">
                         <div class="media-body">
                             <h3 class="media-heading"><a href="http://www.opera.com/">Opera</a></h3>
-                            <p>Enable the flag called <strong>Enable experimental Web Platform features</strong> going to:<br><a href="opera://flags/#enable-experimental-web-platform-features">opera://flags/#enable-experimental-web-platform-features</a></p>
+                            <p>Enabled by default since version 44.</p>
                         </div>
                     </div>
                 </div>
                 <div class="col-sm-6">
                     <div class="media thumbnail">
-                        <img class="pull-left media-object" src="img/webkit.png" alt="WebKit logo">
+                        <img class="pull-left media-object" src="img/safari.png" alt="Safari logo">
                         <div class="media-body">
-                            <h3 class="media-heading"><a href="https://webkit.org/downloads/">WebKit</a></h3>
-                            <p>In Safari Technology Preview and WebKit Nightly Builds you can enable the experimenta feature called <strong>CSS Grid</strong> using the menu: <em>Develop > Expermiental Features > CSS Grid</em></p>
+                            <h3 class="media-heading"><a href="https://developer.apple.com/safari/download/">Safari</a></h3>
+                            <p>Enabled by defualt since version 10.1.</p>
                         </div>
                     </div>
                 </div>
@@ -90,7 +90,7 @@ <h3 class="media-heading"><a href="https://webkit.org/downloads/">WebKit</a></h3
                         <img class="pull-left media-object" src="img/epiphany.png" alt="Epiphany logo">
                         <div class="media-body">
                             <h3 class="media-heading"><a href="https://wiki.gnome.org/Apps/Web">Epiphany</a></h3>
-                            <p>Set the environment variable <tt>WEBKITGTK_EXPERIMENTAL_FEATURES</tt>:<br><pre>$ export WEBKITGTK_EXPERIMENTAL_FEATURES="CSS_GRID_LAYOUT=1"</pre></p>
+                            <p>Enabled by default since version 3.24.</p>
                         </div>
                     </div>
                 </div>