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      1. 如何在图像悬停中显示文本

        时间:2023-11-29

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                  本文介绍了如何在图像悬停中显示文本的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我有一些缩略图,我想在悬停时在它们上面显示一些文字.我可以让它们在悬停时变暗,但不知道如何添加文本.

                  I have a few tumbnails that I want to show some text on them in hover. I could make them dark in hover but do not know how to add text.

                  示例:http://www.lenzflare.com/video-production-portfolio/

                  这是我所做的:

                      a {
                      display: inline-block;
                      overflow: hidden;
                      position: relative;
                      }
                      a:hover .play {
                      background:url(http://goo.gl/yJqCOR) no-repeat center    center;
                      opacity: 0.8;
                      position: absolute;
                      width: 200px;
                      height: 200px;
                      left: 50%;
                      top: 50%;
                      margin-left: -110px;
                      margin-top: -150px;
                      }
                  
                  <a href="/">
                  <div class="play"></div>
                  <img class="img" src="http://i42.tinypic.com/2v9zuc1.jpg" />
                  <br />
                  </a>
                  

                  演示:http://jsfiddle.net/jmXdh/79/

                  推荐答案

                  好吧,我假设你想要这个列表:

                  Well I'm going to assume you want this in a list:

                  这里有几个主要概念:相对定位以及它如何与绝对定位、源顺序以及您的居中技术一起使用.

                  There are a few main concepts here: Relative positioning and how it works with absolute positioning, Source order, and your centering technique.

                  给予位置时:相对;对于盒子,你是在说我现在是边界——对于我内在任何绝对定位的东西".(除非它们是相对的,然后像下面那样) - 所以,你想要淡入的绝对定位的封面 - 绝对定位到相关框的一个或多个边缘.(大多数人使用 top: 0; left: 0;) --- 所以绝对框不再在流"中.并生活在由亲属决定的自己的魔法世界中.

                  When giving position:relative; to the box, you are saying "I am the boundary now - for any absolutely positioned things within me" (unless they are relative, and then like that on down the line) - So, the absolutely positioned cover thing you want to fade in - is absolutely positioned to one or more edges of the relative box. (most people use top: 0; left: 0;) --- so the absolute box is no longer in the "flow" and lives in it's own magic world determined by the relative parent.

                  源顺序:堆叠时您的 html 会出现自下而上.所以你的封面应该在图片下方(按 html 顺序) - 你可以使用 z-index - 但没有必要这样做.

                  Source order: your html will appear bottom up when stacking. so your cover thing should be below the image (in the html order) - you could use z-index - but there is no need to do that.

                  这里的负边距并不是很好,也不需要.您可以将文本居中对齐.我会做一些测试并在东西周围设置边界,这样你就可以看到它实际发生了什么.ALSO - 我鼓励你使用 box-sizing: border-box;关于一切......

                  The negative margins are not really awesome and unneeded here. You can just text align center them. I would do some tests and put borders around stuff so you can see what it actually happening. ALSO - I encourage you to use box-sizing: border-box; on everything...

                  阅读:边框

                  <ul class="thumbnail-list">
                  
                    <li>
                      <a href="#" class="image-w">
                        <img alt="thumbnail"
                             src="http://placekitten.com/600/300" />
                        
                        <div class="cover">
                          <h3>Title</h3>
                          <p>A little bit more about the thing</p>
                        </div>
                      </a>
                    </li>
                    
                  </ul> <!-- .thumbnail-list -->
                  

                  CSS

                  .thumbnail-list {
                    list-style: none;
                    margin: 0; paddingn: 0;
                  }
                  
                  .thumbnail-list li {
                    float: left;
                  }
                  
                  a {
                    text-decoration: none;
                    color: inherit;
                  }
                  
                  .thumbnail-list .image-w {
                    display: block;
                    position: relative;
                    width: 16em;
                  }
                  
                  .image-w img {
                    display: block;
                    width: 100%;
                    height: auto;
                  }
                  
                  .cover {
                    position: absolute;
                    top: 0; right: 0;
                    bottom: 0; left: 0;
                    width: 100%;
                    height: 100%;
                    color: rgba(255,255,255,0);
                    text-align: center;
                    transition: all 1s linear;
                  }
                  
                  .cover:hover {
                    background-color: rgba(0,0,0,.8);
                    color: rgba(255,255,255,1);
                    transition: all .2s linear;
                  }
                  
                  .thumbnail-list h3 {
                    font-size: 1.2em;
                  }
                  
                  .thumbnail-list p {
                    font-size: .9em;
                  }
                  

                  这里是 jsfiddle 上的代码

                  这篇关于如何在图像悬停中显示文本的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

                  上一篇:带有 CSS3 和 javascript z 轴问题的缩略图悬停缩放(放大) 下一篇:悬停时特定于 jquery 的显示按钮

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