解决方法
为此，您的bootstrap.css代码必须具有面板的样式。所以你必须将以下样式粘贴到你的bootstrap.css / bootstrap.min.css文件中。如果您对更改核心文件不感兴趣，可以将其添加到您的css文件中。这样做后，您可以按照
http://getbootstrap.com/components/#panels中的代码进行操作。
.panel {
padding: 15px;
margin-bottom: 20px;
background-color: #ffffff;
border: 1px solid #dddddd;
border-radius: 4px;
-webkit-Box-shadow: 0 1px 1px rgba(0,0.05);
Box-shadow: 0 1px 1px rgba(0,0.05);
}
.panel-heading {
padding: 10px 15px;
margin: -15px -15px 15px;
font-size: 17.5px;
font-weight: 500;
background-color: #f5f5f5;
border-bottom: 1px solid #dddddd;
border-top-right-radius: 3px;
border-top-left-radius: 3px;
}
.panel-footer {
padding: 10px 15px;
margin: 15px -15px -15px;
background-color: #f5f5f5;
border-top: 1px solid #dddddd;
border-bottom-right-radius: 3px;
border-bottom-left-radius: 3px;
}
.panel-primary {
border-color: #428bca;
}
.panel-primary .panel-heading {
color: #ffffff;
background-color: #428bca;
border-color: #428bca;
}
.panel-success {
border-color: #d6e9c6;
}
.panel-success .panel-heading {
color: #468847;
background-color: #dff0d8;
border-color: #d6e9c6;
}
.panel-warning {
border-color: #fbeed5;
}
.panel-warning .panel-heading {
color: #c09853;
background-color: #fcf8e3;
border-color: #fbeed5;
}
.panel-danger {
border-color: #eed3d7;
}
.panel-danger .panel-heading {
color: #b94a48;
background-color: #f2dede;
border-color: #eed3d7;
}
.panel-info {
border-color: #bce8f1;
}
.panel-info .panel-heading {
color: #3a87ad;
background-color: #d9edf7;
border-color: #bce8f1;
}