@import url('https://fonts.googleapis.com/css?family=Lato&display=swap');

* {
  box-sizing: border-box;
}

body {
  background-color: #efedd6;
  font-family: 'Lato', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0;
  overflow-x: hidden;
}
h1{
  margin: 10px;
}
.box{
  background-color: steelblue;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 400px;
  height: 200px;
  margin: 10px;
  border-radius: 10px;
  box-shadow: 2px 4px 5px rgba(0, 0, 0, 0.3);
  transform: translateX(200%);
  transition: transform 0.4s ease;
}
.box:nth-last-of-type(even){
  transform: translateX(-200%);
}
.box.show{
  transform: translateX(0);
}