.ribbon20-wrapper {  
  display: block;
  position: relative;
  margin: 0 auto;
  padding: 20px 0;
  width: 100%;
  background: #f1f1f1;
  }

.ribbon20 {
  display: inline-block;
  position: absolute;
  left: 0;
  top: 5px;
  box-sizing: border-box;
  padding: 0 12px;
  margin: 0;
  height: 30px;
  line-height: 30px;
  font-size: 18px;
  letter-spacing: 0.1em;
  color: white;
  background: #45931d;
  box-shadow: 0 2px 2px rgba(0, 0, 0, 0.12);
}
.ribbon20:before {
  position: absolute;
  content: '';
  top: 0;
  left: -7px;
  border: none;
  height: 38px;
  width: 7px;
  background: #45931d;
  border-radius: 5px 0 0 5px;
}
.ribbon20:after {
  position: absolute;
  content: '';
  bottom: -7px;
  left: -5px;
  border: none;
  height: 7px;
  width: 5px;
  background: #4d99ca;
  border-radius: 5px 0 0 5px;
}