scroll-padding-bottom
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
scroll-padding-bottom 属性定义了滚动口的最优视区——用于在用户视野中放置内容的目标区域——的下内边距。作者由此得以排除滚动口被其他内容（如固定定位的工具栏或侧边栏）所遮挡的区域，或在目标元素与滚动口的边之间留出更多余地。
尝试一下
scroll-padding-bottom: 0;
scroll-padding-bottom: 20px;
scroll-padding-bottom: 2em;
<section class="default-example" id="default-example">
<div class="scroller" id="example-element">
<div>1</div>
<div>2</div>
<div>3</div>
</div>
<div class="info">Scroll »</div>
</section>
.default-example .info {
inline-size: 100%;
padding: 0.5em 0;
font-size: 90%;
writing-mode: vertical-rl;
}
.scroller {
text-align: left;
height: 250px;
width: 270px;
overflow-y: scroll;
display: flex;
flex-direction: column;
box-sizing: border-box;
border: 1px solid black;
scroll-snap-type: y mandatory;
}
.scroller > div {
flex: 0 0 250px;
background-color: rebeccapurple;
color: #fff;
font-size: 30px;
display: flex;
align-items: center;
justify-content: center;
scroll-snap-align: end;
}
.scroller > div:nth-child(even) {
background-color: #fff;
color: rebeccapurple;
}
语法
css
/* 关键字值 */
scroll-padding-bottom: auto;
/* <length> 值 */
scroll-padding-bottom: 10px;
scroll-padding-bottom: 1em;
scroll-padding-bottom: 10%;
/* 全局值 */
scroll-padding-bottom: inherit;
scroll-padding-bottom: initial;
scroll-padding-bottom: revert;
scroll-padding-bottom: revert-layer;
scroll-padding-bottom: unset;
取值
<length-percentage>-
滚动口的下内边距，为有效的长度或百分比。
auto-
此内边距由用户代理所决定。此值通常为
0px，但用户代理可检测非零值是否更合理并另行处理。
形式定义
形式语法
scroll-padding-bottom =
auto |
<length-percentage [0,∞]>
<length-percentage> =
<length> |
<percentage>
规范
| Specification |
|---|
| CSS Scroll Snap Module Level 1 # padding-longhands-physical |