*,
*:before,
*:after {
  box-sizing: border-box;
}

body,
html {
  height: 100%;
  display: grid;
}

.container {
  width: 320px;
  margin: auto;
}

.button,
.textfield {
  border-radius: 4px;
  border: 0;
  font-size: 14px;
  padding: 1rem;
  width: 100%;
}

.button {
  background-color: #1e1e1e;
  color: #fff;
  padding-left: 1rem;
  padding-right: 1rem;
}

.textfield {
  background-color: #e8e8e8;
  border: 0;
}

.row {
  margin-bottom: 1rem;
}

.label {
  color: #72777c;
  display: block;
  font-size: 14px;
  margin-bottom: 0.5rem;
}

.title,
.result-value {
  text-transform: uppercase;
  border-top: 4px solid #e8e8e8;
  font-family: "Dosis", sans-serif;
  font-size: 3rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.title {
  border-top: 0;
  border-bottom: 4px solid #e8e8e8;
}

#article {
  padding: 5% 15% 1%;
}