Rounded corner with pointy edge on button CSS

Question

I am thinking of using pseudo elements before and after in button to achieve this rounded-sides-triangle (rotated) and pointy corner. See photo for desired result.

Answer 1

You can try something like this:

.box {
  width: 300px;
  height: 80px;
  --c: #000;
  position: relative;
  line-height: 80px;
  font-size: 20px;
  text-align: center;
  color: #fff;
  z-index: 0;
}

.box:before,
.box:after {
  content: "";
  position: absolute;
  background:linear-gradient(#000,#000) top/100% 50% no-repeat;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: -1;
}

.box:before {
  border-radius: 60px 60px 0 0;
}

.box:after {
  border-radius: 0 0 60px 60px;
  background-position:bottom;
}

<div class="box">
  Some text
</div>