<style>
.table_style{ 100%;height: auto;}
.table_style tr td{text-align: center;vertical-align: middle!important;height:30px;line-height:30px;}
</style>
<table class="table table-condensed table-bordered table_style">
</table>
text-align: center;左右居中；
vertical-align: middle!important;上下居中