html {
  min-height: 100%;
  background-color: #050505;
}

body {
  min-height: 100vh;
  margin: 0;
  background-color: #050505;
  background-image: url("backg.jpg");
  background-position: center top;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}

/* Keep the page usable even when third-party Bootstrap cannot be loaded. */
.container {
  width: 100%;
  max-width: 1140px;
  margin-right: auto;
  margin-left: auto;
}

.text-center { text-align: center; }
.pb-2 { padding-bottom: .5rem; }
.pb-5 { padding-bottom: 3rem; }
.col-md-12 { position: relative; width: 100%; }

@media (max-width: 575.98px) {
  .container { max-width: 100%; }
  .btn-logo { width: 42%; }
}