SCSS

by Aakash Khapare M

HTML

<div id="banner-message">
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
  <p>Hello World</p>
</div>

SCSS

$blue: #0084ff;
$blue-darker: darken($blue, 5);

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
  position: relative;
  max-height: 400px;
  overflow-y: scroll;
  overflow-x: hidden;
  
  &:before {
    content: '';
    display: block;
    box-shadow: 0 0 16px 0 green;
    position: sticky;
    width: 100%;
    height: 30px;
    left: 0;
    top: 0;
    z-index: 1;
  }
}



.scroller::-webkit-scrollbar {
  width: 8px;
}

.scroller::-webkit-scrollbar-thumb {
  background-color: darkgrey;
  border-radius: 2px;
  min-height: 50px;
}