Question

我想了解为什么图像不一定能正确居中。有人告诉我，默认情况下<a>标签是inline元素，因此要更改其大小，您需要将其display属性更改为block或{{ 1}}。然后，一旦设置了inline block标签的宽度，就可以将<a>标签的宽度设置为100％，它将与<img>标签的形状一致。

HTML：

<a>

CSS：

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Photo Gallery</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="css/normalize.css">
        <link rel="stylesheet" href="js/lightbox/lightbox.min.css">
        <link rel="stylesheet" href="css/main.css">
    </head>
    <body>
        <div class=container>

            <!-- <form action="form-field"> -->
            <input type="search" id="site-search" placeholder="Search(16pt)">
            <!-- </form> -->

            <div class="images">
                <a href= "photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="photos/thumbnails/01.jpg" alt="Image 1"></a>
                <a href= "photos/thumbnails/02.jpg" data-lightbox="image-2"><img src="photos/thumbnails/02.jpg" alt="Image 2"></a>
                <a href= "photos/thumbnails/03.jpg" data-lightbox="image-3"><img src="photos/thumbnails/03.jpg" alt="Image 3"></a>
                <a href= "photos/thumbnails/04.jpg" data-lightbox="image-4"><img src="photos/thumbnails/04.jpg" alt="Image 4"></a>
                <a href= "photos/thumbnails/05.jpg" data-lightbox="image-5"><img src="photos/thumbnails/05.jpg" alt="Image 5"></a>
                <a href= "photos/thumbnails/06.jpg" data-lightbox="image-6"><img src="photos/thumbnails/06.jpg" alt="Image 6"></a>
                <a href= "photos/thumbnails/07.jpg" data-lightbox="image-7"><img src="photos/thumbnails/07.jpg" alt="Image 7"></a>
                <a href= "photos/thumbnails/08.jpg" data-lightbox="image-8"><img src="photos/thumbnails/08.jpg" alt="Image 8"></a>
                <a href= "photos/thumbnails/09.jpg" data-lightbox="image-9"><img src="photos/thumbnails/09.jpg" alt="Image 9"></a>
                <a href= "photos/thumbnails/10.jpg" data-lightbox="image-10"><img src="photos/thumbnails/10.jpg" alt="Image 10"></a>
                <a href= "photos/thumbnails/11.jpg" data-lightbox="image-11"><img src="photos/thumbnails/11.jpg" alt="Image 11"></a>
                <a href= "photos/thumbnails/12.jpg" data-lightbox="image-12"><img src="photos/thumbnails/12.jpg" alt="Image 12"></a>
            </div>

        </div>
        <script src="js/jquery-3.4.1.min.js"></script>
        <script src="js/lightbox/lightbox-plus-jquery.min.js"></script>
        <script src="js/main.js"></script>
    </body>
</html>

但是我尝试过它仍然没有工作。我知道图像在导入时具有自己的尺寸，但是这里的逻辑是什么？在处理图像时，我总是不得不考虑CSS设置，因为它们太不可预测了。

https://ibb.co/Y02j6VL

Answer 1

可能有4种可能性。

1）将您的 .images 填充更改为margin：0自动，就像这样：

.images {
  border: 1px red solid;
  margin: 0 auto;
}

2）根据您的布局，图像的宽度也可能达到100％。因此，您还需要在 images div上添加text-align:center。

3）您的图像div可以转换为display:flex，然后在其上设置justify-content: center。

4）如果要使用 .container 内容居中。您可以在图像div上使用align-item:center。由于容器具有flex-direction:column

.container {
  display: flex;
  flex-direction: column;
  align-items:center;
  margin: 0 auto;
  padding: 10px;
  border: 1px solid black;
}

input[type="search"] {
  height: 30px;
}

.images {
  border: 1px red solid;
  margin: 0 auto;
  text-align: center;
}

<div class=container>
  <div class="images">
    <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="photos/thumbnails/01.jpg" alt="Image 1"></a>
    <a href="photos/thumbnails/02.jpg" data-lightbox="image-2"><img src="photos/thumbnails/02.jpg" alt="Image 2"></a>
    <a href="photos/thumbnails/03.jpg" data-lightbox="image-3"><img src="photos/thumbnails/03.jpg" alt="Image 3"></a>
    <a href="photos/thumbnails/04.jpg" data-lightbox="image-4"><img src="photos/thumbnails/04.jpg" alt="Image 4"></a>
    <a href="photos/thumbnails/05.jpg" data-lightbox="image-5"><img src="photos/thumbnails/05.jpg" alt="Image 5"></a>
    <a href="photos/thumbnails/06.jpg" data-lightbox="image-6"><img src="photos/thumbnails/06.jpg" alt="Image 6"></a>
    <a href="photos/thumbnails/07.jpg" data-lightbox="image-7"><img src="photos/thumbnails/07.jpg" alt="Image 7"></a>
  </div>

</div>

Answer 2

由于您的代码正在使用display: flex;，因此这里是一种继续使用它的解决方案。但是，对于flex images class来说更有意义。要使内容居中，请根据align-items: center; justify-content: center;使用flex-direction。

旁注：padding: 0 auto;不是问题，auto没有padding的值。

.container {
  margin: 0 auto;
  padding: 10px;

}

input[type="search"] {
  height: 30px;
}

.images {
  width: 245px;
  display: flex;
  flex-direction: row;
  border: 1px red solid;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

<!doctype html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <title>Photo Gallery</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="css/normalize.css">
    <link rel="stylesheet" href="js/lightbox/lightbox.min.css">
    <link rel="stylesheet" href="css/main.css">
</head>

<body>
    <div class=container>

        <!-- <form action="form-field"> -->
        <input type="search" id="site-search" placeholder="Search(16pt)">
        <!-- </form> -->

        <div class="images">
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
            <div>
                <a href="photos/thumbnails/01.jpg" data-lightbox="image-1"><img src="https://www.gravatar.com/avatar/b0327f4c2d7593ae3c7185a66d69d81b?s=48&d=identicon&r=PG&f=1" alt="Image 1"></a>
            </div>
        </div>

    </div>
    <script src="js/jquery-3.4.1.min.js"></script>
    <script src="js/lightbox/lightbox-plus-jquery.min.js"></script>
    <script src="js/main.js"></script>
</body>

</html>

如何在容器内将图像链接居中放置？

2 个答案: