xrpl-dev-portal/_code-samples/build-a-browser-wallet/js/index.css

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

a {
  font-weight: 500;
  color: white;
  cursor: pointer;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  min-width: 320px;
  min-height: 100vh;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
}

.main_content {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.main_logo {
  align-self: center;
}

.logo_link {
  align-self: center;
}

.logo {
  height: 6em;
  padding: 1.5em;
  will-change: filter;
  transition: filter 300ms;
}
.logo:hover {
  filter: drop-shadow(0 0 2em #646cffaa);
}
.logo.vanilla:hover {
  filter: drop-shadow(0 0 2em #848080f5);
}

.wallet_details {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 20px;
  border: 1px solid white;
  border-radius: 10px;
}

.ledger_details, .send_xrp_container, .tx_history_container {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 20px;
  border: 1px solid white;
  border-radius: 10px;
}

.send_xrp_container label {
  padding: 10px 0 0 0;
}

.invalid {
  border: 1px solid red !important;
}

.send_xrp_container input {
  padding: 10px;
  border-radius: 10px;
  border: 1px solid black;
  background: lightgray;
  color: black;
  outline: none;
}

.heading_h3 {
  font-size: 25px;
  font-weight: bold;
  padding: 0 0 10px 0;
}

.links {
  display: flex;
  gap: 12px;
}

button {
  padding: 5px 12px;
  background: inherit;
  cursor: pointer;
  border: 1px solid white;
  border-radius: 10px;
  font-size: 14px;
}

button:hover {
  color: black;
  background: white;
}

.submit_tx_button {
  color: black;
  background: white;
  margin: 30px 0 0 0;
}

.submit_tx_button:disabled {
  color: gray;
  background: lightgray;
  cursor: not-allowed;
}

.tx_history_data {
  display: table;
  text-align: center;
  border-spacing: 10px;
}

.tx_history_data th {
  border-bottom: 1px solid white;
  padding: 0 0 5px 0;
}