Material Design - Secondary Scroll Bar for List Component - html

Question

In my project I'm using the code from google's material design website: https://material.io/components/web/catalog/lists/
It work great, however, as more list entries are added I have to scroll down to see them. The problem is that to scroll through the list, I am scrolling past my page header.
I'm asking if anyone knows how to add a 'secondary scroll bar' (I don't know what you call them) that when used only scrolls through the list.
An example of what I'm trying to achieve is here: https://stackoverflow.com/a/21998914/8625593
Thanks in advance!

Answer 1

Limit the height on the list container. It will cause a scroll bar to be shown or add a scroll vertical scroll bar with the property 'over-flow-y'.
For example:
#listContainer{
max-height:200px;
width:18%;
overflow:hidden;
overflow-y:scroll;
}
#container {
overflow-y:scroll
}
<div>
<h1>Headline</h1>
<div id="container">
<ul id="listContainer">
<li>Link 1</li>
<li>Link 2</li>
<li>Link 3</li>
<li>Link 4</li>
<li>Link 5</li>
<li>Link 6</li>
<li>Link 7</li>
<li>Link 8</li>
<li>Link 9</li>
<li>Link 10</li>
<li>Link 11</li>
<li>Link 12</li>
<li>Link 13</li>
<li>Link 14</li>
<li>Link 15</li>
<li>Link 16</li>
<li>Link 17</li>
<li>Link 18</li>
<li>Link 19</li>
<li>Link 20</li>
</ul>
</div>
<div>Possible Summary Information</div>
</div>