Install Nokogiri (HTML, XML parser)
$ sudo apt-get install libxslt-dev libxml2-dev
$ bundle install

Populate Admin Account:
rake db:seed

Styling with CSS3 with IE support (remember to include the "behavior: url(PIE.htc);"). 
refer to: http://css3pie.com/
Example:

border: 1px solid #696;
padding: 60px 0;
text-align: center; width: 200px;
-webkit-border-radius: 8px;
-moz-border-radius: 8px;
border-radius: 8px;
-webkit-box-shadow: #666 0px 2px 3px;
-moz-box-shadow: #666 0px 2px 3px;
box-shadow: #666 0px 2px 3px;
background: #EEFF99;
background: -webkit-gradient(linear, 0 0, 0 bottom, from(#EEFF99), to(#66EE33));
background: -moz-linear-gradient(#EEFF99, #66EE33);
-pie-background: linear-gradient(#EEFF99, #66EE33);
behavior: url(/PIE.htc); /* <-- include this line to enable CSS3 for IE */