Tweet Sandbox

HTML

<div id="twitter-sandbox">
    <div class="stream-item" media="true">
        <div class="stream-item-content tweet js-actionable-tweet stream-tweet">
            <div class="tweet-image">
                <img height="48" width="48" src="http://pbs.twimg.com/profile_images/1034047614419795970/BmOeemIz_normal.jpg" alt="Adam Schwartz" class="user-profile-link">
            </div>
            <div class="tweet-content">
                <div class="tweet-row">
                    <span class="tweet-user-name">
                        <a class="tweet-screen-name user-profile-link" href="/#!/adamfschwartz" title="Adam Schwartz">adamfschwartz</a>
                        <span class="tweet-full-name">Adam Schwartz</span>
                    </span>
                </div>
                <div class="tweet-row">
                    <div class="tweet-text pretty-link">Sad I had to use one of my precious 7 tweets to reply to <a class="twitter-atreply" data-screen-name="vicariousdrivel" href="http://twitter.com/vicariousdrivel" rel="nofollow"><span class="at">@</span><span class="at-text">vicariousdrivel</span></a> ... Oh well. :/ Now, to think of something for my 7th tweet...</div>
                </div>
                <div class="tweet-row">
                    <a href="/#!/adamfschwartz/status/107220206929195008" class="tweet-timestamp" title="6:37 PM Aug 26th"><span class="_old-timestamp" data-time="1314398264000" data-long-form="true">26 Aug</span></a>
                </div>
            </div>
        </div>
    </div>
</div>

CSS

#twitter-sandbox {font:13px/1.5 Helvetica Neue,Arial,Helvetica,'Liberation Sans',FreeSans,sans-serif;}
#twitter-sandbox a{color:#2D76B9;text-decoration:none;}
#twitter-sandbox a:hover{text-decoration:underline;}
#twitter-sandbox a:focus{outline:1px dotted;}
#twitter-sandbox .stream{position:relative;background-color:#fff;padding-top:1px;min-height:800px;margin-top:1px;zoom:1;}
#twitter-sandbox .stream .stream-item:first-child,
#twitter-sandbox .stream .hovered-stream-item:first-child,
#twitter-sandbox .related-tweets .stream-item:first-child:hover{border-top:none;}
#twitter-sandbox .pretty-link a.twitter-sandbox-hashtag:hover span.at-text,
#twitter-sandbox .pretty-link a.twitter-sandbox-atreply:hover span.at-text,
#twitter-sandbox a.pretty-link:hover span.at-text,.pretty-link a.twitter-sandbox-hashtag:hover span.hash-text,
#twitter-sandbox .pretty-link a.twitter-sandbox-atreply:hover span.hash-text,
#twitter-sandbox a.pretty-link:hover span.hash-text{text-decoration:underline;_background:transparent;}
#twitter-sandbox span.hash{display:inline-block;filter:alpha(opacity=70);_filter:none;opacity:.7;}
#twitter-sandbox span.at{display:inline-block;filter:alpha(opacity=50);_filter:none;opacity:.5;}
#twitter-sandbox span.at:hover,
#twitter-sandbox span.hash:hover{cursor:pointer;}
#twitter-sandbox .stream-item{width: 450px; position:relative;border-bottom:1px solid #ebebeb;min-height:60px;clear:both;display:block;outline:none;margin-top:-1px;border-top:1px solid transparent;}
#twitter-sandbox .stream-item.blocked{display:none;}
#twitter-sandbox .stream-item:hover,
#twitter-sandbox .related-tweets .stream-item:hover,.hovered-stream-item{cursor:pointer;background:#f4f4f4;border-top:1px solid #EBEBEB;}
#twitter-sandbox .tweet-text{padding:0;font-family:Arial,"Helvetica Neue",sans-serif;line-height:19px;word-wrap:break-word;}
#twitter-sandbox .tweet-meta{color:#999;font-size:11px;font-style:normal;}
#twitter-sandbox .tweet-meta...