scroll-margin-block-start

Baseline 已廣泛支援

此功能已成熟，並可在多種裝置和瀏覽器版本上執行。自 2021 年 9 月起，所有瀏覽器均已支援此功能。

scroll-margin-block-start 屬性定義了塊維度的起始位置的滾動捕捉區域的外邊距，用於將此框捕捉到捕捉埠。滾動捕捉區域透過獲取變換後的邊框、找到其矩形邊界框（在滾動容器的座標空間中與軸對齊），然後新增指定的外部偏移量來確定。

試一試

scroll-margin-block-start: 0;

scroll-margin-block-start: 20px;

scroll-margin-block-start: 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: white;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
}

.scroller > div:nth-child(even) {
  background-color: white;
  color: rebeccapurple;
}

語法

css

/* <length> values */
scroll-margin-block-start: 10px;
scroll-margin-block-start: 1em;

/* Global values */
scroll-margin-block-start: inherit;
scroll-margin-block-start: initial;
scroll-margin-block-start: revert;
scroll-margin-block-start: revert-layer;
scroll-margin-block-start: unset;