How can I create a round arrow with only HTML and CSS?

Question

I\'m trying to create a round directional arrow with CSS and HTML. Below are my attempts.

Attempt 1

In this I have rotated the

and

Answer 1

I have created this little thing in CSS, you can look at the code to see how it works.

Note: this does need a solid background.

.arrow {
  width: 200px;
  height: 200px;
  border: 6px solid;
  border-radius: 50%;
  position: relative;
}
.arrow:before {
  content: "";
  display: block;
  width: 10px;
  height: 50px;
  background: #fff;
  position: absolute;
  bottom: 0;
  top: 0;
  right: -6px;
  margin: auto;
}
.arrow:after {
  content: "";
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-top: 20px solid #000;
  position: absolute;
  bottom: 106px;
  right: -20px;
}