* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  font-family: Arial, sans-serif;
  background-color: #073b4c;
  background-image: url('../bg/dtcai.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  display: flex;
  /*flex-direction: column;*/
}

h1 {
  text-align: center;
  padding: 20px 0;
  color: #ffd166;
  background-color: #022532;
}

.content {
    flex: 1;
    padding: 20px;
}


.sidebar {
  width: 230px;
  background-color: #022532;
  /*2c3e50*/
  height: 100vh;
  color: white;
  display: flex;
  flex-direction: column;
  padding: 20px;
  letter-spacing: 2px;
}

.sidebar a {
  padding: 20px;
  color: white;
  text-decoration: none;
  /*margin-bottom: 20px;*/
  display: block;
  font-size: 18px;
}

.sidebar a:hover {
  text-decoration: underline;
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: #022532;
    color: white;
    text-align: center;
    padding: 8px 0;
}