Fix iframe HTML validation errors.

Author: XhmikosR

layouts/css/_base.styl

@@ -86,3 +86,6 @@ blockquote
     background-color rgba(0, 0, 0, 0.14)
     content ''
     display block
+
+iframe
+  border none

locale/en/blog/video/bert-belder-libuv-lxjs-2012.md

@@ -11,6 +11,4 @@ Node core committer Bert Belder gave a talk at
 asynchronous I/O across platforms, then you should definitely watch
 this video.
 
-<iframe width="640" height="360"
-src="https://www.youtube.com/embed/nGn60vDSxQ4" frameborder="0"
-allowfullscreen></iframe>
+<iframe width="640" height="360" src="https://www.youtube.com/embed/nGn60vDSxQ4" allowfullscreen></iframe>

locale/en/blog/video/bryan-cantrill-instrumenting-the-real-time-web.md

@@ -12,8 +12,6 @@ Bryan Cantrill, VP of Engineering at Joyent, describes the challenges of instrum
 
 This talk was given at Velocity Conf in 2011.
 
-<iframe width="640" height="360"
-src="https://www.youtube.com/embed/F5jCXdTYJYc" frameborder="0"
-allowfullscreen></iframe>
+<iframe width="640" height="360" src="https://www.youtube.com/embed/F5jCXdTYJYc" allowfullscreen></iframe>
 
-<iframe src="https://slideshare.net/slideshow/embed_code/key/DVu5NQDhPXN709" width="595" height="485" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" style="border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;" allowfullscreen> </iframe> <div style="margin-bottom:5px"> <strong> <a href="https://slideshare.net/bcantrill/instrumenting-the-realtime-web" title="Instrumenting the real-time web" target="_blank">Instrumenting the real-time web</a> </strong> from <strong><a href="//www.slideshare.net/bcantrill" target="_blank">bcantrill</a></strong> </div>
+<iframe src="https://slideshare.net/slideshow/embed_code/key/DVu5NQDhPXN709" width="595" height="485" style="border:1px solid #ccc; border-width:1px; margin-bottom:5px; max-width: 100%;" allowfullscreen> </iframe> <div style="margin-bottom:5px"> <strong> <a href="https://slideshare.net/bcantrill/instrumenting-the-realtime-web" title="Instrumenting the real-time web" target="_blank">Instrumenting the real-time web</a> </strong> from <strong><a href="//www.slideshare.net/bcantrill" target="_blank">bcantrill</a></strong> </div>

locale/en/blog/video/welcome-to-the-node-blog.md

@@ -11,6 +11,5 @@ layout: blog-post.hbs
 Since Livejournal is disintegrating into Russian spam, I'm moving my technical blog to http://blog.nodejs.org/. I hope to do frequent small posts about what's going on in Node development and include posts from other core Node developers. Please subscribe to the RSS feed.
 
 To avoid making this post completely devoid of content, here is a new video from a talk I gave at the SF PHP group tastefully produced by <A href="http://marakana.com/forums/java/general/278.html">Marakana</a>:
-<iframe width="640" height="360"
-src="https://www.youtube.com/embed/jo_B4LTHi3I" frameborder="0"
-allowfullscreen></iframe>
+
+<iframe width="640" height="360" src="https://www.youtube.com/embed/jo_B4LTHi3I" allowfullscreen></iframe>