carbon.css

#_default_ {
  position: relative;
  background-color: #efefef;
  font-family: Verdana, sans-serif;
  line-height: 1.5;
  border-radius: 5px;
  box-shadow: inset 1px 1px 5px rgba(0, 0, 0, 0.4);
}

.default-ad {
  position: absolute;
  top: 6px;
  right: 6px;
  padding: 1px 4px;
  color: hsla(0, 0%, 20%, 0.3);
  text-transform: uppercase;
  font-size: 10px;
}

._default_ {
  display: block;
  overflow: hidden;
  padding: 1em;
  line-height: 1.5;
}

a {
  text-align: left;
  color: black;
  text-decoration: none;
}

a:hover {
  color: #900;
}

.default-image img {
  display: block;
  float: left;
  width: 40px;
  border-radius: 7.5%;
}

.default-title,
.default-description {
  display: block;
  margin-left: calc(40px + 10px);
  max-width: calc(100% - 220px);
}

.default-title {
  font-weight: 600;
  font-size: 1em;
}

.default-description {
  font-size: 0.8em;
}

.default-image:after {
  position: absolute;
  top: calc(50% - 20px);
  right: 3em;
  padding: 0.5em 1em;
  border-radius: 3px;
  background-color: #cc0000;
  color: #fff;
  content: 'Learn More';
}

.default-image:hover:after {
  background-color: #900;
}