add float-right class cause alink unactive

[itildesk]

ok example

<div class="callout clearfix"> <a class="button go-back clear"><i class="fa fa-arrow-left"></i>返回</a> <a class="button secondary clear"><span class="feature-title"><%= breadcrumbs.OPName %></span></a> <a class="button" data-open="add_user"><i class="fa fa-plus"></i>帐号</a>

</div>

not ok example

<div class="callout clearfix"> <a class="button go-back clear"><i class="fa fa-arrow-left"></i>返回</a> <a class="button secondary clear"><span class="feature-title"><%= breadcrumbs.OPName %></span></a> <a class="button float-right" data-open="add_user"><i class="fa fa-plus"></i>帐号</a>

</div>

in 2th segment the 3rd a-link will not work