@import url("https://fonts.googleapis.com/css?family=Ropa+Sans");
body {
  background: #d1dce2;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Ropa Sans", sans-serif;
}

h1 {
  text-align: center;
  margin-top: 20px;
  color: #272537;
}

h2 {
  color: #e5d817;
  margin-bottom: 7px;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.panel {
  width: 400px;
  height: 400px;
  margin: 40px 0;
  padding: 20px;
  transition: all 0.5s linear;
  background: #606977;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  justify-content: flex-start;
}

.panel.left {
  transform-origin: center right;
  transform: perspective(700px) rotateY(-70deg);
}
.panel.left.active {
  transform: none;
  background: #272537;
}

.panel.right {
  transform-origin: center left;
  transform: perspective(700px) rotateY(70deg);
}
.panel.right.active {
  transform: none;
  background: #272537;
}

input {
  width: 100%;
  padding: 7px;
  border: 0;
  outline: none;
  border-radius: 7px;
  color: #272537;
  font-weight: 600;
  font-size: 30px;
  text-align: center;
}

button {
  border: 0;
  background: #606977;
  width: 100%;
  margin-top: 7px;
  padding: 7px;
  border-radius: 7px;
  outline: none;
  cursor: pointer;
  text-transform: uppercase;
  font-weight: 600;
}
button:hover {
  background: #e5d817;
}

.result {
  width: 100%;
  flex: 1;
  margin-top: 7px;
  padding: 7px;
  overflow: auto;
  text-align: center;
  color: #fff;
  font-size: 20px;
}


#article {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  padding: 3% 10%;
  font-size: 1.1em;
}