.bg-dark {
  background: #333;
  color: #fff;
}

.bg-light {
  background: #f4f4f4;
  color: #333;
}

/* Button */
.btn {
  cursor: pointer;
  display: inline-block;
  padding: 10px 30px;
  color: #fff;
  background-color: #28a745;
  border: none;
  border-radius: 5px;
}

.btn:hover {
  opacity: 0.9;
}

/* Flex columns */

.flex-columns .row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 100%;
}

.flex-columns .column {
  display: flex;
  flex-direction: column;
  flex-basis: 100%;
  flex: 1;
}

.flex-columns,
.column .column-1,
.flex-columns,
.column .column-2 {
  height: 100%;
}

.flex-columns img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.flex-columns .column-2 {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 30px;
}

.flex-columns h2 {
  font-size: 40px;
  font-weight: 100;
}

.flex-columns h4 {
  margin-bottom: 10px;
}

.flex-columns p {
  margin: 20px 0;
}