scroll-margin-top

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2021年4月⁩.

scroll-margin-top 属性定义了滚动吸附区域的上外边距，此区域用于将此盒吸附至滚动口。滚动吸附区域的确定方法为：取变换后的边框盒，求其矩形包围盒（与滚动容器的坐标空间中的轴对齐），再加上指定的外边距。

尝试一下

scroll-margin-top: 0;

scroll-margin-top: 20px;

scroll-margin-top: 2em;

<section class="default-example" id="default-example"> <div class="scroller"> <div>1</div> <div id="example-element">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: start; } .scroller > div:nth-child(even) { background-color: #fff; color: rebeccapurple; }

语法

css

/* <length> 值 */ scroll-margin-top: 10px; scroll-margin-top: 1em; /* 全局值 */ scroll-margin-top: inherit; scroll-margin-top: initial; scroll-margin-top: revert; scroll-margin-top: revert-layer; scroll-margin-top: unset;