ボタン周り
btn-defaultを追加
bootstrap 2
<a class="btn" />
bootstrap 3
<a class="btn btn-default" />
btn-mini
bootstrap 2
<a class="btn btn-mini" />
bootstrap 3
<a class="btn btn-sm" />
レイアウト周り
row-fluid
bootstrap 2
<div class="row-fluid" />
bootstrap 3
<div class="row" />
span
bootstrap 2
<div class="span8" />
bootstrap 3
<div class="col-md-8" />
icon
bootstrap 2
<i class="icon-bar-chart"></i>
bootstrap 3
<i class="fa fa-bar-chart"></i>