.parent {
  overflow: hidden; /* required */
  position: relative; /* required  for demo*/
}

.ribbon {
  min-width: 60;
	margin: 0;
  padding: 0;
  background: #503CFF;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon:before,
.ribbon:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #503CFF;
}
.ribbon:before {
  right:100%;
}

.ribbon:after {
  left:100%;
}



.ribbon_black {
  min-width: 60;
        margin: 0;
  padding: 0;
  background: #444444;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon_black:before,
.ribbon_black:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #444444;
}
.ribbon_black:before {
  right:100%;
}

.ribbon_black:after {
  left:100%;
}




.ribbon_navy {
  min-width: 60;
        margin: 0;
  padding: 0;
  background: #4361EE;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon_navy:before,
.ribbon_navy:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #4361EE;
}
.ribbon_navy:before {
  right:100%;
}

.ribbon_navy:after {
  left:100%;
}




.ribbon_green {
  min-width: 60;
        margin: 0;
  padding: 0;
  background: #77BB77;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon_green:before,
.ribbon_green:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #77BB77;
}
.ribbon_green:before {
  right:100%;
}

.ribbon_green:after {
  left:100%;
}




.ribbon_dark_blue {
  min-width: 60;
        margin: 0;
  padding: 0;
  background: #8888AA;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon_dark_blue:before,
.ribbon_dark_blue:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #8888AA;
}
.ribbon_dark_blue:before {
  right:100%;
}

.ribbon_dark_blue:after {
  left:100%;
}



.ribbon_red {
  min-width: 60;
        margin: 0;
  padding: 0;
  background: #DD2222;
  color:white;
  padding:10px 0;
  position: absolute;
  top:0;
  right:0;
  transform: translateX(50%) translateY(0%) rotate(45deg);
  transform-origin: top left;
}
.ribbon_red:before,
.ribbon_red:after {
  content: '';
  position: absolute;
  top:0;
  margin: 0 -1px; /* tweak */
  width: 100%;
  height: 100%;
  background: #DD2222;
}
.ribbon_red:before {
  right:100%;
}

.ribbon_red:after {
  left:100%;
}