* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: verdana, sans-serif;
}

img {
  max-width: 100%;
}

blockquote {
  font-style: italic;
  margin: 0;
}

.error {
  color: #DD2222;
}

.container {
  display: flex;
  flex-direction: column;
  margin: auto;
  max-width: 800px;
  min-height: 100vh;
  padding: 15px;
}

.header__link {
  color: black;
  text-decoration: none;
}

.btn {
  background-color: rgb(40, 96, 144);
  border: 1px solid #222;
  border-radius: 5px;
  color: #ffffff;
  cursor: pointer;
  font-size: 20px;
  padding: 0.5em 0.5em;
  text-decoration: none;
}

.btn:hover {
  background-color: rgb(30, 85, 135);
}

.btn--small {
  font-size: 14px;
}

.center {
  text-align: center;
}