Button

#Buttons

#按钮标签

使用按钮类<a>,<button>， 或者<input> 元素。

<a class="btn btn-default" href="#" role="button">Link</a>
<button class="btn btn-default" type="submit">Button</button>
<input class="btn btn-default" type="button" value="Input">
<input class="btn btn-default" type="submit" value="Submit">

#Options

使用任何可用的按钮类来快速创建样式按钮。

<!-- Standard button -->
<button type="button" class="btn btn-default">Default</button>

<!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
<button type="button" class="btn btn-primary">Primary</button>

<!-- Indicates a successful or positive action -->
<button type="button" class="btn btn-success">Success</button>

<!-- Contextual button for informational alert messages -->
<button type="button" class="btn btn-info">Info</button>

<!-- Indicates caution should be taken with this action -->
<button type="button" class="btn btn-warning">Warning</button>

<!-- Indicates a dangerous or potentially negative action -->
<button type="button" class="btn btn-danger">Danger</button>

<!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
<button type="button" class="btn btn-link">Link</button>

#Sizes

喜欢更大或更小的按钮？添加.btn-lg,.btn-sm， 或者.btn-xs 额外的尺寸。

<p>
    <button type="button" class="btn btn-primary btn-lg">Large button</button>
    <button type="button" class="btn btn-default btn-lg">Large button</button>
</p>
<p>
    <button type="button" class="btn btn-primary">Default button</button>
    <button type="button" class="btn btn-default">Default button</button>
</p>
<p>
    <button type="button" class="btn btn-primary btn-sm">Small button</button>
    <button type="button" class="btn btn-default btn-sm">Small button</button>
</p>
<p>
    <button type="button" class="btn btn-primary btn-xs">Extra small button</button>
    <button type="button" class="btn btn-default btn-xs">Extra small button</button>
</p>

通过添加 .btn-block 创建块级按钮——那些跨越父元素整个宽度的按钮。

<button type="button" class="btn btn-primary btn-lg btn-block">Block level button</button>
<button type="button" class="btn btn-default btn-lg btn-block">Block level button</button>