CSS - add internal bottom shadow inside HTML element

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
<style>

    .element {
        border: 1px solid silver;
        overflow: hidden;
    }
  
    .element::after {
        margin: 0;
        height: 20px;
        background: linear-gradient(0deg, rgba(0, 0, 0, 0.05), rgba(255, 255, 255, 0));
        display: block;
        content: '';
    }

</style>

<div class="element">
  1<br />
  2<br />
  3<br />
</div>