JSFiddle - React, Tailwind, and code Playground
by Shashank D
HTML
<div class="container">
<h1>Content Here</h1>
<div class="zig-zag-border">
</div>
</div>
CSS
.container {
position: relative;
padding: 8px 8px 32px 8px;
background: #dddccf;
}
.container .zig-zag-border {
background: linear-gradient(-45deg, #ffffff 16px, transparent 0), linear-gradient(45deg, #ffffff 16px, transparent 0);
background-position: left-bottom;
background-repeat: repeat-x;
background-size: 32px 32px;
content: " ";
display: block;
position: absolute;
bottom: 0px;
left: 0px;
width: 100%;
height: 32px;
}