bootstrap 警告框
image.png
<div class="container"> <div class="alert alert-success"> <p>显示了警告框</p> </div> <div class="alert alert-danger"> <p>显示了警告框</p> </div> <div class="alert alert-info"> <p>显示了警告框</p> </div> </div>
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腾讯云开发者
image.png
<div class="container"> <div class="alert alert-success"> <p>显示了警告框</p> </div> <div class="alert alert-danger"> <p>显示了警告框</p> </div> <div class="alert alert-info"> <p>显示了警告框</p> </div> </div>