尝试在保持风格的同时集中文本

Question

好的，我在使用bootstrap并且里面有一些带有文本的缩略图框（参见下面的代码）。

我还希望垂直和水平对齐文字，我使用flexbox完成此操作，这似乎有效，但现在span，h4和p标签都在同一行而不是stacked。

是解决此问题的最佳方法，因此我获得了标记stacked，但也将水平和垂直居中。

HTML

<div class="col-md-3 overlord-thumbnail">
    <div class="thumbnail">
        <a href="#tab4" data-toggle="tab">
            <div class="caption">
                <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                <h4>Latest News</h4>
                <p>text here</p>
            </div>
        </a>
        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
        <h4> Latest News</h4>
        <p>text here</p>
    </div>
</div>

CSS

.overlord-thumbnail {
    height: 188px;
    overflow-y: hidden;
    overflow-x: hidden;
}

.thumbnail {
    background: whitesmoke;
    border-radius: 0;
    height: 100%;
    display: -moz-box;
    display: -ms-flexbox;
    display: inline-flex;
    -moz-box-pack: center;
    -ms-flex-pack: center;
    -moz-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.caption {
    position:absolute;
    top:-100%;
    right:0;
    background: rgba(66, 139, 202, 0.64);
    width:100%;
    height:100%;
    padding:2%;
    text-align:center;
    color:#fff !important;
    z-index:2;
    -webkit-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
}
.thumbnail:hover .caption {
    top:0;
}

目前

应

Answer 1

问题是默认样式会覆盖您正在应用的样式。使用.overlord-thumbnail>.thumbnail优先考虑。

此外，您需要使用flex-direction:column;将它们堆叠起来，而不是彼此相邻排列。

＆＃13;

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.overlord-thumbnail {
    height: 188px;
    overflow-y: hidden;
    overflow-x: hidden;
}

.overlord-thumbnail>.thumbnail{
    background: whitesmoke;
    border-radius:0;
    width:100%;
    height: 100%;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-align:center;
}

.caption {
    position:absolute;
    top:-100%;
    right:0;
    background: rgba(66, 139, 202, 0.64);
    width:100%;
    height:100%;
    padding:2%;
    text-align:center;
    color:#fff !important;
    z-index:2;
    -webkit-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
    
}
.thumbnail:hover .caption {
    top:0;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="col-md-3 overlord-thumbnail">
        <div class="thumbnail">
            <a href="#tab4" data-toggle="tab">
                <div class="caption">
                    <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                    <h4>Latest News</h4>
                    <p>text here</p>
                </div>
            </a>
            <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
            <h4> Latest News</h4>
            <p>text here</p>
        </div>
    </div>

＆＃13;

＆＃13;

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