Flexbox with Position Sticky

by Matthew Schenker

HTML

<div class="flexbox-wrapper">
  <div class="regular">
    This is the regular box
  </div>
  <div class="sticky">
    This is the sticky box
  </div>
</div>

CSS

.flexbox-wrapper {
  display: flex;
  height: 500px;
  overflow: auto;
}
.regular {
  background-color: blue;
  height: 600px;
}
.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  align-self: flex-start;
  background-color: red;
}