body {
    user-select: none;
}

header img {
    border-radius: 50%;
}

.b-example-divider {
    height: 3rem;
    background-color: rgba(0, 0, 0, .1);
    border: solid rgba(0, 0, 0, .15);
      border-top-width: medium;
      border-right-width: medium;
      border-bottom-width: medium;
      border-left-width: medium;
    border-width: 1px 0;
    box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
  }