@import url("https://fonts.googleapis.com/css2?family=Mulish&display=swap");

* {
  box-sizing: border-box;
}

body {
  font-family: "Mulish", sans-serif;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-image: linear-gradient(90deg, #ff9f4a, #ff3c83);
}

.container {
  position: relative;
}

.btn {
  cursor: pointer;
  background-color: #fff;
  height: 40px;
  width: 40px;
  font-size: 18px;
  border: 0;
  padding: 10px;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform 0.3s ease;
  border-radius: 10px;
}

.input {
  background-color: #fff;
  height: 40px;
  width: 40px;
  border: 0;
  font-size: 18px;
  padding: 10px;
  transition: width 0.3s ease;
  border-radius: 10px;
}

.btn:focus,
.input:focus {
  outline: none;
}

.container.active .input {
  width: 200px;
}

.container.active .btn {
  transform: translateX(180px);
}