[TOC] ## 對齊 ``` text-left text-center text-right text-justify text-justify text-nowrap ``` ## 大小 ``` text-lowercase //全小寫 text-uppercase // 全大寫 text-capitalize //首字母大寫 ``` ## 顏色 ``` text-danger text-primary text-success text-warning text-info ``` ## 警告框  ``` <div class="alert alert-success" role="alert">...</div> <div class="alert alert-info" role="alert">...</div> <div class="alert alert-warning" role="alert">...</div> <div class="alert alert-danger" role="alert">...</div> ``` 帶×的 ``` <div class="alert alert-warning alert-dismissible" role="alert"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button> <strong>Warning!</strong> Better check yourself, you're not looking too good. </div> ``` ## 背景色  ``` <p class="bg-primary">...</p> <p class="bg-success">...</p> <p class="bg-info">...</p> <p class="bg-warning">...</p> <p class="bg-danger">...</p> ```