CSS scroll-padding-top 属性指定元素的滚动捕捉区域的顶部偏移量。
滚动捕捉区域是当用户滚动时元素将捕捉到的滚动容器区域。
可能的值
- <length>： 长度值是一个数值，例如 px、em、percentage。
适用于
所有 HTML 元素。
DOM 语法
object.style.scrollPaddingTop = "length";
CSS scroll-padding-top - 零值
以下示例演示如何使用 scroll-padding-top 属性来确保容器顶部没有填充 -
<html>
<head>
<style>
.scroll-container {
width: 350px;
height: 200px;
overflow-x: hidden;
overflow-y: scroll;
scroll-snap-type: y mandatory;
scroll-padding-top: 0;
}
.scrolling-section1,
.scrolling-section2,
.scrolling-section3 {
width: 350px;
height: 200px;
scroll-snap-align: start;
}
.scrolling-section1 {
background-color: rgb(220, 235, 153);
}
.scrolling-section2 {
background-color: rgb(230, 173, 218);
}
.scrolling-section3 {
background-color: rgb(119, 224, 210);
}
</style>
</head>
<body>
<h3>Scroll the content using the scrollbar arrows to see the effect.</h3>
<div class="scroll-container">
<div class="scrolling-section1">scroll-padding-top: 0</div>
<div class="scrolling-section2">scroll-padding-top: 0</div>
<div class="scrolling-section3">scroll-padding-top: 0</div>
</div>
</body>
</html>
CSS scroll-padding-top - 长度值
以下示例演示如何使用 scroll-padding-top 属性在滚动容器的顶部添加额外的填充 -
<html>
<head>
<style>
.scroll-container {
width: 350px;
height: 200px;
overflow-x: hidden;
overflow-y: scroll;
scroll-snap-type: y mandatory;
scroll-padding-top: 25px;
}
.scrolling-section1,
.scrolling-section2,
.scrolling-section3 {
width: 350px;
height: 200px;
scroll-snap-align: start;
}
.scrolling-section1 {
background-color: rgb(220, 235, 153);
}
.scrolling-section2 {
background-color: rgb(230, 173, 218);
}
.scrolling-section3 {
background-color: rgb(119, 224, 210);
}
</style>
</head>
<body>
<h3>Scroll the content using the scrollbar arrows to see the effect.</h3>
<div class="scroll-container">
<div class="scrolling-section1">scroll-padding-top: 25px</div>
<div class="scrolling-section2">scroll-padding-top: 25px</div>
<div class="scrolling-section3">scroll-padding-top: 25px</div>
</div>
</body>
</html>
