@import url('https://fonts.googleapis.com/css2?family=Xanh+Mono:ital@0;1&display=swap');

body {
  background: #d4c9a8;
  font-family: Verdana;
  margin: 0;
}

.window {
  width: 900px;
  margin: 30px auto;
  border: 3px solid black;
  background: #efe6c8;
  box-shadow: 6px 6px 0 #000;
}

.titlebar {
  background: linear-gradient(90deg, #000080, #1084d0);
  color: white;
  padding: 8px;
  font-weight: bold;
  display: flex;
  justify-content: space-between;
}

.content {
  padding: 20px;
}

h1,
h2 {
  font-family: Xanh Mono;
  letter-spacing: 3px;
  border-bottom: 2px solid black;
}

a {
  color: #0000cc;
}

.bloglist li {
  margin: 10px 0;
}

.date {
  color: #555;
  font-size: 12px;
}

iframe {
  width: 100%;
  height: 400px;
  border: 2px inset black;
  background: black;
}

button {
  background: #d4c9a8;
  border: 2px outset white;
  cursor: pointer;
}
button:active {
  border: 2px inset white;
}