styles.css

html {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  text-align: center;
}

body {
  max-width: 600px;
  margin: auto;
}

h1 {
  margin-top: 1em;
}

.note {
  text-align: left;
  font-size: 0.9em;
  line-height: 1.5;
  color: #666;
}

.note svg {
  margin-right: 0.5em;
  vertical-align: -2px;
  width: 14px;
  height: 14px;
  margin-right: 5px;
}

form {
  display: flex;
  margin: 8px 0;
  gap: 8px;
}

input {
  flex: 1;
}

input,
button {
  font-size: 16px;
  padding: 6px 5px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    Liberation Mono, Courier New, monospace;
  font-feature-settings: 'rlig' 1, 'calt' 1, 'ss01' 1;
  background-color: #eee;
  padding: 1px 3px;
  border-radius: 2px;
}

ul {
  text-align: left;
  list-style: none;
  padding: 0;
}

li {
  margin: 8px 0;
  padding: 10px;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12), 0 0 0 1px #ededed;
}

i {
  color: #999;
}

.info,
.success,
.error {
  display: block;
  text-align: left;
  padding: 6px 0;
  font-size: 0.9em;
  opacity: 0.9;
}

.info {
  color: #666;
}
.success {
  color: #4caf50;
}
.error {
  color: #f44336;
}