index.html

<span>
  <button>5 hidden comments</button>
</span>

style.less

.zig-zag {
  fill: red;
}
span{
  display:block;
  width: 500px;
  text-align: center;
  background: 0 center repeat-x    url('data:image/svg+xml;utf-8,<?xml version="1.0" encoding="utf-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="9px" height="6px" viewBox="0 0 9 6" enable-background="new 0 0 9 6" xml:space="preserve"><polygon class="zig-zag" opacity="1.0" points="4.5,4.5 0,0 0,1.208 4.5,5.708 9,1.208 9,0 "/></svg>');
}
button{
  background: #f1f1f1;
  padding: 10px;
  border:0;
  box-shadow: 0 0 10px 5px #f1f1f1;
}

// centering junk
html {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

body {
  padding: 50px;
  background-color: #f1f1f1;
}

SVG-zigzag.markdown

SVG zigzag

Forked from Rogie's Pen SVG zigzag.

A Pen by Captain Anonymous on CodePen.

License.