html,
body {
  width: 100%;
  height: 100%;
}

body {
  color: #333;
  margin: 0;
  position: relative;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell,
    'Helvetica Neue', sans-serif;
  display: flex;
  justify-content: center;
}

main {
  position: relative;
}

a {
  color: rgb(0, 100, 200);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  cursor: pointer;
}

a:visited {
  color: rgb(0, 80, 160);
}

label {
  display: block;
}

input,
button,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  box-sizing: border-box;
  padding: 0.25rem 0.5rem;
  border: 0.0625rem solid #ccc;
  border-radius: 0.2rem;
  margin-bottom: 0.5rem;
}

input:disabled {
  color: #ccc;
}

button {
  color: #333;
  background-color: #f4f4f4;
  outline: none;
}

button:disabled {
  color: #999;
}

button:not(:disabled):active {
  background-color: #ddd;
}

button:focus {
  border-color: #666;
}

button:hover {
  cursor: pointer;
}

ul {
  list-style-type: none;
}

ul,
li {
  padding: 0;
  margin: 0;
}

.clickable:hover {
  cursor: pointer;
}

* {
  box-sizing: border-box;
}