html,
body {
  width: 100%;
  height: 100%;
}

.container {
  padding: 0px 0;
  margin: 0 auto;
  width: 730px;
}

h1 {
  position: relative;
  margin-bottom: 0px;
  font-family: "Oswald", sans-serif;
  font-size: 44px;
  text-transform: uppercase;
  color: #424242;
}

.gallery-wrap {
  display: flex;
  flex-direction: row;
  width: 100%;
  height: 100vh;
}

.item {
  flex: 1;
  height: 150%;
  background-position: center;
  background-size: cover;
  background-repeat: none;
  transition: flex 0.8s ease;
}
.item:hover {
  flex: 7;
}



.item-1 {
  background-image: url("https://dev.lmsadmins.com/testimonial/c.png?auto=format&fit=crop&w=1234&q=70");
}