Cadenas en pure CSS

<p class="padlock">Secured credit card payment</p>

.padlock {
  position: relative;
  padding-left: 20px;
  font-family: Arial;
}
.padlock:before, .padlock:after {
  content: "";
  position: absolute;
  display: block;
  background-position: 0 -180px;
}
.padlock:before {
  top: -2px;
  left: 2px;
  width: 5px;
  height: 5px;
  border-radius: 12px 12px 0 0;
  border: 2px solid #999;
}
.padlock:after {
  top: 0;
  left: 0;
  width: 13px;
  height: 9px;
  border-radius: 2px;
  margin-top: 5px;
  background-color: #999;
}
/* source : priceminister */

🔒