content.css

.bux-wrapper {
  box-sizing: border-box;
  width: 320px;
  background-color: rgba(0, 0, 0, 0.85);
  font-family: Arial, Helvetica Neue, Helvetica, sans-serif;
  color: #fff;
  padding: 30px;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 999999999999;
}

.bux-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bux-headerHeading {
  font-size: 16px;
}

.bux-headerLink {
  font-size: 14px;
  color: #fff;
  text-decoration: underline;
}

.bux-headerLink:visited {
  color: #fff;
}

.bux-cards {
  box-sizing: border-box;
  max-height: calc(100vh - 82px);
  display: flex;
  flex-wrap: wrap;
  padding-top: 8px;
  padding-bottom: 8px;
  margin-left: -10px;
  margin-top: 30px;
  margin-right: -10px;
  overflow-y: auto;
}

.bux-card {
  box-sizing: border-box;
  flex: 0 0 100%;
  padding-left: 10px;
  padding-right: 10px;
  margin-bottom: 30px;
}

.bux-cardNotFoundHeading {
  font-size: 30px;
}

.bux-cardNotFoundText {
  font-size: 19px;
  margin-top: 10px;
}

.bux-cardNotFoundLink {
  color: #FF7D00;
}

.bux-cardButton {
  cursor: pointer;
  display: block;
  width: 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding-bottom: 55%;
  border: none;
  border-radius: 6px;
  position: relative;
  box-sizing: border-box;
}

.bux-cardButton:hover,
.bux-cardButton:focus {
  border: none;
  outline: none;
}

.bux-cardButton:before {
  border: 2px solid transparent;
  border-radius: 6px;
  position: absolute;
  top: -8px;
  right: -8px;
  bottom: -8px;
  left: -8px;
}

.bux-cardButton:after {
  background-color: rgba(0, 0, 0, 0.8);
  font-size: 14px;
  line-height: 144px;
  text-align: center;
  color: #fff;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.bux-cardButton:hover:before {
  content: '';
  border-color: #555;
}

.bux-cardButtonSelected:before,
.bux-cardButtonSelected:hover:before {
  content: '';
  border-color: #FF7D00;
}

.bux-cardButtonSelected:after {
  content: 'Click again to remove applied styles';
}

.bux-cardText {
  font-size: 13px;
  margin-top: 10px;
}

.bux-clearStyles {
  display: none;
  width: 100%;
  height: 40px;
  appearance: none;
  background: white;
  color: black;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  outline: none;
}