html - Bootstrap 列不起作用

Question

无法弄清楚为什么没有使用此 HTML 构建列:

<div class="container">
    <div class="row">
        <div class="col-md-12">
            <div class="col-md-4">  
                <a href="">About</a>
            </div>
            <div class="col-md-4">
                <img src="image.png">
            </div>
            <div class="col-md-4"> 
                <a href="#myModal1" data-toggle="modal">SHARE</a>
            </div>
        </div>
    </div>
</div>

Answer 1

试试这个:

DEMO

<div class="container-fluid"> <!-- If Needed Left and Right Padding in 'md' and 'lg' screen means use container class -->
            <div class="row">
                <div class="col-xs-4 col-sm-4 col-md-4 col-lg-4">
                    <a href="#">About</a>
                </div>
                <div class="col-xs-4 col-sm-4 col-md-4 col-lg-4">
                    <img src="image.png" />
                </div>
                <div class="col-xs-4 col-sm-4 col-md-4 col-lg-4">
                    <a href="#myModal1" data-toggle="modal">SHARE</a>
                </div>
            </div>
        </div>