.sections-row {
  display: flex;
  overflow: hidden;
  /* remove width:100% */
  width: auto; /* or just omit width entirely */
  max-width: 100%; /* keeps it responsive */
}

.sections-row .section {
  flex: 1;
  background-size: cover;
  background-position: center;
  transition: flex 0.4s ease;
  position: relative;
  min-height: 400px;
}

.sections-row .section:hover,
.sections-row .section.active {
  flex: 2;
}

.sections-row .overlay {
  /*background: rgba(0,0,0,0.4); */
  color: #fff;
  padding: 20px;
  /*text-align: center; */
  position: absolute;
  bottom: 0;
  width: 100%;
}

.sections-row h2, .sections-row p {
  color: #f6f0eb;
}

.section-btn {
  display: inline-block;
  margin-top: 10px;
  background: none;
  color: #fff;
  border: 1px solid #fff;
  border-radius: 25px;
  padding: 8px 16px;
  text-decoration: none;
}