<div class="wrap">
  <div class="block block-1">
    <div class="ribbon">Ribbon Nr.1</div>
  </div>
  <div class="block block-2">
    <div class="ribbon"><span>Ribbon Nr.2</span></div>
  </div>
  <div class="block block-3">
    <div class="ribbon">Ribbon Nr.3</div>
  </div>
  <div class="block block-2">
    <div class="ribbon"><span class="icon">#</span></div>
    <div class="ribbon"><span>Ribbon Nr.2</span></div>
  </div>
</div>

body {
  font-family: sans-serif;
  padding: 50px 20px;
}

* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}

.wrap {
  width: 100%;
  max-width: 462px;
  margin: 0 auto;
  position: relative;
}

.block {
  height: 100px;
  background-color: lightgray;
  position: relative;
  margin: 0 0 30px;
}

/* Ribbon style 1 */
.block-1 {
  border: 3px solid #c7111a;
  background: #ffffff;
  -webkit-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  -moz-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
}

.block-1 .ribbon {
  background-color: #EA141F;
  top: -12px;
  left: 40px;
  display: inline-block;
  height: 24px;
  text-align: center;
  line-height: 24px;
  color: #fff;
  font-size: 0.688rem;
  position: absolute;
  padding: 0 10px;
  font-weight: 600;
  -webkit-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  -moz-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  z-index: 11;
}

.block-1 .ribbon::after {
  content: "";
  position: absolute;
  left: -12px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 12px 12px;
  border-color: transparent transparent #c7111a transparent;
  z-index: 10;
}

/* Ribbon style 2 */
.block-2 {
  border: 3px solid #c7111a;
  background: #ffffff;
  -webkit-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  -moz-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
}

.block-2 .ribbon {
  height: 75px;
  left: -5px;
  overflow: hidden;
  position: absolute;
  text-align: right;
  top: -5px;
  width: 75px;
  z-index: 1;
}

.block-2 .ribbon span {
  background-color: #EA141F;
  box-shadow: 0 3px 10px -5px #000;
  color: #fff;
  display: block;
  font-weight: 600;
  left: -21px;
  line-height: 20px;
  position: absolute;
  top: 19px;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  width: 100px;
  text-align: center;
  font-size: 0.688rem;
}

.block-2 .ribbon span.icon {
  background-color: #EA141F;
  box-shadow: 0 3px 10px -5px #000;
  color: #fff;
  display: block;
  font-weight: 600;
  left: -19px;
  line-height: 28px;
  position: absolute;
  top: -4px;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  width: 56px;
  text-align: center;
  font-size: 0.688rem;
}

.block-2 .ribbon span::after,
.block-2 .ribbon span::before {
  border-bottom: 3px solid transparent;
  border-top: 3px solid #c7111a;
  content: " ";
  position: absolute;
  top: 100%;
  z-index: -1;
}

.block-2 .ribbon span::before {
  border-left: 3px solid #c7111a;
  border-top: 3px solid #c7111a;
  left: 0;
}

.block-2 .ribbon span::after {
  border-right: 3px solid #c7111a;
  border-top: 3px solid #c7111a;
  right: 0;
}

/* Ribbon style 2 */
.block-3 {
  border: 3px solid #c7111a;
  background: #ffffff;
  -webkit-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  -moz-box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
  box-shadow: -3px 3px 3px 0px rgba(0,0,0,0.15);
}

.block-3 .ribbon {
  left: -6px;
  top: -6px;
  padding: 5px 10px;
  font-size: 0.688rem;
  font-weight: 600;
  padding-right: 30px;
  letter-spacing: 0.1px;
  color: hsla(0,0%,100%,.87);
  background: linear-gradient(-66deg,transparent,transparent 19%,#EA141F 0%,#EA141F);
  position: absolute;
}

.block-3 .ribbon::before {
  border: 3px solid transparent;
  content: " ";
  position: absolute;
  top: 100%;
  z-index: 10;
  border-right: 3px solid #c7111a;
  border-top: 3px solid #c7111a;
  left: 0;
}