html, body {
    margin: 0; 
    padding: 0;
}

body {
    background-color: #ecf0f1;
}

nav {
    background-color: #34495e;
    width: 100%; 
}

nav i {
    margin: 14px 16px;
    color: #ecf0f1;
}

table i {
    color: #2c3e50;
}

/* Base container */
.container {
  width: 100%;
  padding-right: 0.75rem;
  padding-left: 0.75rem;
  margin-right: auto;
  margin-left: auto;
  margin-top: 0.75rem;
}

/* Small devices (≥576px) */
@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

/* Medium devices (≥768px) */
@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

/* Large devices (≥992px) */
@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

/* Extra large devices (≥1200px) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* XXL devices (≥1400px) */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}