.btn-default??按钮的默认样式;
.btn-primary??按钮的首选样式;
.btn-success??按钮的成功样式;
.btn-info??按钮的一般信息样式;‘
.btn-warning??按钮的警告样式;
.btn-danger??按钮的危险样式;
.btn-link??按钮的链接样式;
.btn-lg??大按钮样式;
.btn-sm??小按钮样式;
.btn-xs??超小按钮样式;
.btn-block??将按钮设置为充满父元素;
.active??设置按钮为激活状态;
.disabled??设置按钮为禁用状态;
.img-circle??将图片设置为圆形;
.img-rounded??为图片设置为圆角;
.img-thumbnail??将图片设置为方形;
.img-responsive??为图片添加响应式;
<meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <title>CSS全局样式_栅格系统</title> <link rel="stylesheet" href="bootstrap.min.css" type="text/css"><div class="container"> <p> <button type="button" class="btn btn-default">(默认样式)Default</button> <button type="button" class="btn btn-primary">(首选项)Primary</button> <button type="button" class="btn btn-success">(成功)Success</button> <button type="button" class="btn btn-info">(一般信息)Info</button> <button type="button" class="btn btn-warning">(警告)Warning</button> <button type="button" class="btn btn-danger">(危险)Danger</button> <button type="button" class="btn btn-link">(链接)Link</button> </p> <p> <button type="button" class="btn btn-success btn-lg" disabled>success</button> <button type="button" class="btn btn-success active">success</button> <button type="button" class="btn btn-success btn-sm">success</button> <button type="button" class="btn btn-success btn-xs">success</button> </p> <button type="button" class="btn btn-success btn-block">success</button> <a href="#" class="btn btn-primary btn-block">登录</a> <input class="btn btn-primary btn-block" value="提交"> <img src="images/g.jpg" alt="girl" class="img-circle"> <img src="images/g.jpg" alt="girl" class="img-rounded"> <img src="images/g.jpg" alt="girl" class="img-thumbnail"> <img src="images/937654.jpg" alt="girl" class="img-responsive"> </div>
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