我检测到100%宽度的视差背景图像有问题。我必须使用div height的固定值,因为它是空的。
问题是:视口狭窄时,背景图像下的空白区域。 问:如何创建与背景图像高度相等的自适应div高度。
我当前的搜索和尝试:
尝试两种最流行的方法无效
准备codepen:https://codepen.io/SeboFE/pen/xBVjzQ
// tried, but didn't work
// <div class="parallax">
// <img src="https://images.pexels.com/photos/574205/pexels-photo-574205.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260">
// </div>
// img{
// visibility: hidden;
// max-width: 100%;
// }
//second method didn;t work too
// .parallax{
// background-image: url("https://images.pexels.com/photos/574205/pexels-photo-574205.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260");
// background-attachment: fixed;
// background-repeat: no-repeat;
// background-size: 100% auto;
// padding-top: 60%;
// height: 0;
// }
html, body{
width: 100%;
margin: 0;
padding: 0;
}
.empty-space-20{
height: 20vh;
background-color: lime;
}
.parallax{
background-image: url("https://images.pexels.com/photos/574205/pexels-photo-574205.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260");
background-attachment: fixed;
background-repeat: no-repeat;
background-size: 100% auto;
height: 40vh;
}
.empty-space{
height: 1000px;
background-color: coral;
}
<div class="empty-space-20">some empty space</div>
<div class="parallax"></div>
<div class="empty-space">some empty space</div>
答案 0 :(得分:0)
使用vw
而非vh
可以提高响应速度,并避免图像下方留有空间。图像的高度在不断变化,以保持其比例,因此对div也是一样。您还可以将图像的位置调整为在该div内部分层。
html, body{
width: 100%;
margin: 0;
padding: 0;
}
.empty-space-20{
height: 20vh;
background-color: lime;
}
.parallax{
background-image: url("https://images.pexels.com/photos/574205/pexels-photo-574205.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260");
background-attachment: fixed;
background-repeat: no-repeat;
background-size: 100% auto;
background-position: 0 20vh;
height: 50vw;
}
.empty-space{
height: 1000px;
background-color: coral;
}
<div class="empty-space-20">some empty space</div>
<div class="parallax"></div>
<div class="empty-space">some empty space</div>
如果您不希望任何滚动空间,请降低高度,如下所示,并保留背景的默认位置:
html, body{
width: 100%;
margin: 0;
padding: 0;
}
.empty-space-20{
height: 20vh;
background-color: lime;
}
.parallax{
background-image: url("https://images.pexels.com/photos/574205/pexels-photo-574205.jpeg?auto=compress&cs=tinysrgb&h=750&w=1260");
background-attachment: fixed;
background-repeat: no-repeat;
background-size: 100% auto;
height: calc(50vw - 20vh);
}
.empty-space{
height: 1000px;
background-color: coral;
}
<div class="empty-space-20">some empty space</div>
<div class="parallax"></div>
<div class="empty-space">some empty space</div>