Question

我有以下html：

<html>
  <head>
    <title>asd</title>
  </head>
  <body>
    <div class="wrapper">
      <div class="slide slide1"></div>
      <div class="slide slide2"></div>
      <div class="slide slide3"></div>
      <div class="slide slide4"></div>
    </div>
  </body>
</html>

和以下CSS：

* { box-sizing: border-box; }

.wrapper {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.slide {
  position: relative;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  -webkit-box-direction: normal;
  -moz-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  width: 100%;
  height: 100vh;
  transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  webkit-transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide1 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Fantastic-Full-HD-Wallpaper.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide2 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Galaxy-Space-Full-HD-Wallpaper.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide3 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Landscape-Full-HD-Wallpaper.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide4 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2018/10/Free-Desktop-Background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide:hover {
  transform: scale(1.2);
  z-index:20;
}

div flex内部的缩放似乎是变换scale的一个小故障我也想找到一种方法来只在div而不是div（将在视口之外缩放）内缩放背景图像。

我尝试添加父包装器，但它会缩放div而不是背景图片。

您可以在此Codepen中看到： https://codepen.io/pufosme/pen/MZWWpM

谢谢！

Answer 1

需要进入父div并添加overflow:hidden（对不起，我的英语不好。）

codepen链接https://codepen.io/dgknca/pen/ebYmRW

* { box-sizing: border-box; }

.wrapper {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.parent {
  flex:1; 
  height: 100vh;
  overflow:hidden;
}

.slide {
  position: relative;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  -webkit-box-direction: normal;
  -moz-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  webkit-transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide1 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Fantastic-Full-HD-Wallpaper.jpg');
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.slide2 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Galaxy-Space-Full-HD-Wallpaper.jpg');
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.slide3 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2016/03/Landscape-Full-HD-Wallpaper.jpg');
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.slide4 {
  background-image: url('http://hdwpro.com/wp-content/uploads/2018/10/Free-Desktop-Background.jpg');
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.slide:hover {
  transform:scale(1.2);
}

<html>
  <head>
    <title>asd</title>
  </head>
  <body>
    <div class="wrapper">
      <div class="parent">
      <div class="slide slide1"></div>
        </div>
      <div class="parent">
      <div class="slide slide2"></div>
      </div>
      <div class="parent">
      <div class="slide slide3"></div>
    </div>
      <div class="parent">
      <div class="slide slide4"></div>
  </div>
    </div>
  </body>
</html>

Answer 2

就个人而言，我将在每张幻灯片内使用IMG（使用对象适合度和对象位置来替换背景属性）。然后缩放图像而不是幻灯片，然后在每张幻灯片上设置overflow: hidden。

喜欢这个https://codepen.io/anon/pen/bOGNoN

.slide {
  ...
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.slide img {
  object-fit: cover;
  object-position: center;
  width: 100%;
  height: 100%;
  transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  webkit-transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide:hover img {
  transform: scale(1.2);
  z-index:20;
  -webkit-box-shadow: 0px 0px 10px 0px rg-webkit-box-shadow: 0px 0px 18px 1px rgba(0,0,0,0.5);
-moz-box-shadow: 0px 0px 18px 1px rgba(0,0,0,0.5);
box-shadow: 0px 0px 18px 1px rgba(0,0,0,0.5);
}

和HTML

<div class="slide slide1">
  <img src='http://hdwpro.com/wp-content/uploads/2016/03/Fantastic-Full-HD-Wallpaper.jpg' />
</div>

子内部的CSS Flexbox图像比例

2 个答案: