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在图像上放置文字时出现z-index问题

[英]z-index issue when placing text over images

我将首先提供CSS和HTML源。

的jsfiddle

现场示例在这里

问题是,除非我执行z-index: -1;否则h2文本不可见z-index: -1; images 它使文本出现,但是随后图像丢失了,我看着body background

除了顶部的固定导航栏之外,没有其他东西可以触及z-index值。

是什么原因造成的,您可以看看吗?

PS。 写作z-index: 2; H2标签上也不起作用。

如果要使<h2>上的z-index:2有效,则应添加position:relative; position:absolute; position:fixed

您可以看到z-index

我更改您的HTML和CSS

在HTML变化:移动到的img 标签

 <div class="spotlight-area">
    <div class="spotlight">

            <div class="spotlight-item width-2 height-2">
                <a href="#" class="spotlight-info">
                    <h2 class="large">
                        Random text
                    </h2>
                    <img src="http://www.sobafire.com/__v2/themes/default/images/news/spotlight-big.jpg" alt="haber">
                </a>


            </div>

            <div class="spotlight-item width-1 height-1">
                <a href="#" class="spotlight-info">
                    <h2>
                        Random Text
                    </h2>
                </a>

                <img src="http://i.imgur.com/TAxDMus.jpg" alt="haber">
            </div>

            <div class="spotlight-item width-1 height-1">
                <a href="#" class="spotlight-info">
                    <h2>
                        Random Text
                    </h2>
                    <img src="http://i.imgur.com/TAxDMus.jpg" alt="haber">
                </a>


            </div>

            <div class="spotlight-item width-1 height-1">
                <a href="#" class="spotlight-info">
                    <h2>
                        Random Text
                    </h2>
                    <img src="http://i.imgur.com/TAxDMus.jpg" alt="haber">
                </a>


            </div>

            <div class="spotlight-item width-1 height-1">
                <a href="#" class="spotlight-info">
                    <h2>
                        Random Text
                    </h2>
                    <img src="http://i.imgur.com/TAxDMus.jpg" alt="haber">
                </a>


            </div>

            <div class="spotlight-item width-1 height-1">
                <a href="#" class="spotlight-info">
                    <h2>
                        Random Text
                    </h2>
                    <img src="http://i.imgur.com/TAxDMus.jpg" alt="haber">
                </a>


            </div>

    </div>
</div>

CSS:

在CSS上更改:移除位置:绝对; img并将其添加到.spotlight-area .spotlight .spotlight-item:hover .spotlight-info h2.spotlight-area .spotlight-info {删除填充,并将边距添加到.spotlight-area .spotlight .spotlight-item:将.spotlight-info h2悬停在具有相似值的位置

.spotlight-area {
width: 790px;
margin: 0px auto;
padding: 0px;
}
.spotlight-area img, .spotlight-area embed {
max-width: 100%;
height: auto;
min-height: 50px;
}

.spotlight-area .spotlight {
display: block;
border-top: 1px solid #3b3b3b;
border-left: 1px solid #3b3b3b;
float: left;
margin-bottom: 4px;
}

.spotlight-area .spotlight .width-1 { width: 262px }
.spotlight-area .spotlight .width-2 { width: 525px }
.spotlight-area .spotlight .height-1 { height: 174px }
.spotlight-area .spotlight .height-2 { height: 349px }
.spotlight-area .spotlight .spotlight-item {
float: left;
position: relative;
border-bottom: 1px solid #3b3b3b;
border-right: 1px solid #3b3b3b;
overflow: hidden;
 }

 .spotlight-area .spotlight .spotlight-item:hover .spotlight-info h2 {
color: #ffc203;
 }
 .spotlight-area .spotlight .spotlight-item img {
width: 100%;
height: 100%;

top: 0;
left: 0;
margin: 0;
border: 0;
    z-index: -1; /* tricky part */
}

.spotlight-area .spotlight-info {
display: block;
height: 100%;
min-height: 50px;
}

.spotlight-area .spotlight-info a {
display: block;
height: 100%;
min-height: 50px;
padding: 20px;
}

.spotlight-area .spotlight .spotlight-item .spotlight-info h2 {
display: inline-block;
max-width: 480px;
font-size: 30px;
line-height: 32px;
color: #f0f0f0;
    position: absolute;
    margin:20px;
} 

在我的测试中,此更改工作

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