JSFiddle - React, Tailwind, and code Playground

by Serhii Matrunchyk

HTML

<div class="wrapper">
  <div class="card">
    <button>
      ABC
    </button>
  </div>

  <div class="footer">
    FOOTER
  </div>
</div>

CSS

.card {
  width: 500px;
  height: 300px;
  border-radius: 5px;
  background: blue;
  display: flex;
  flex-direction: row-reverse;
  padding: 10px;
  overflow: hidden;
}

button {
  width: 80px;
  height: 30px;
  border-radius: 5px;
  background: magenta;
  border: 1px solid white;
  position: relative;
}

button::after {
  content: '';
  width: 30px;
  height: 30px;
  padding: 80px;
  position: absolute;
  border: 100px solid #333;
  border-radius: 500px;
  top: 0;
  left: 0;
}

.footer {
  position: fixed;
  width: 100%;
  background: yellow;
  height: 100px;
  bottom: 0;
}