在图像上垂直对齐figcaption的中心

Question

我试图以居中的方式在图像上对齐figcaption ：

到目前为止，我有以下代码：

.portfolio-item figcaption{
    position: relative;
    top: -40px;
    left: -20px;
    width: 280px;
    background: rgb(52,152,219);
    color: white;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    padding: 10px 5px 10px 5px;
}

对于以下HTML：

<!-- PORTFOLIO IMAGE 1 -->

<div class="portfolio-item">
    <figure>
        <img  src="assets/img/portfolio/folio01.jpg" alt="">
        <figcaption>
                <h5>UI DESIGN</h5>
                <a data-toggle="modal" href="#myModal" >Take a Look</a>
        </figcaption>
    </figure>
</div>

问题是，居中，我使用的是left: -20px; 这绝对不是那么敏感。 任何想法？ 谢谢

Answer 1

Flexbox可以做到这一点。 您不需要使用相对（或绝对）定位。

• 使整个figure元素成为具有column direction的flex容器。
• 使用align-items: center图像和标题align-items: center 。
• 使用flex order属性切换图像和标题的order 。

 figure { display: flex; flex-direction: column; align-items: center; } .portfolio-item figcaption { order: -1; /* default value for all flex items is 1 */ display: flex; flex-direction: row; justify-content: space-around; width: 280px; background: rgb(52, 152, 219); color: white; padding: 10px 5px 10px 5px; /* REMOVED position: relative; top: -40px; left: -20px; */ } 

 <div class="portfolio-item"> <figure> <img src="http://i.imgur.com/60PVLis.png" width="100" height="100" alt=""> <figcaption> <h5>UI DESIGN</h5> <a data-toggle="modal" href="#myModal">Take a Look</a> </figcaption> </figure> </div> 

Answer 2

 figure { position: relative; height: 400px; border: 1px dashed red; } figure > img { position: absolute; left: 50%; /* horizontal alignment */ transform: translateX(-50%); /* horizontal alignment (fine tuning) */ z-index: -1; /* keep image under figcaption always */ } figure > figcaption { position: absolute; top: 40%; /* vertical alignment */ left: 50%; transform: translateX(-50%); display: flex; flex-direction: row; justify-content: space-around; width: 280px; background: rgb(52, 152, 219); color: white; padding: 10px 5px 10px 5px; } 

 <div class="portfolio-item"> <figure> <img src="http://i.imgur.com/60PVLis.png" width="200" height="200" alt=""> <figcaption> <h5>UI DESIGN</h5> <a data-toggle="modal" href="#myModal">Take a Look</a> </figcaption> </figure> </div>