/*
 * Header
 */
.masthead {
  margin-bottom: 2rem;
  background-color: #333;
  color:#fff;
  text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
  padding: 1rem;
}
.rotateimg{
  -webkit-transform: rotate(180deg);     /* Chrome and other webkit browsers */
  -moz-transform: rotate(180deg);        /* FF */
  -o-transform: rotate(180deg);          /* Opera */
  -ms-transform: rotate(180deg);         /* IE9 */
  transform: rotate(180deg);             /* W3C compliant browsers */
}
.masthead-brand {
  margin-bottom: 0;
}

.nav-masthead .nav-link {
  padding: .25rem 0;
  font-weight: 700;
  color: rgba(255, 255, 255, .5);
  background-color: transparent;
  border-bottom: .25rem solid transparent;
}
.backgrounddark{
  background: rgba(51,51,51,0.8);
  box-shadow:  0 0 2rem rgba(0, 0, 0, .8);
}
.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
  border-bottom-color: rgba(255, 255, 255, .25);
}

.nav-masthead .nav-link + .nav-link {
  margin-left: 1rem;
}

.nav-masthead .active {
  color: #fff;
  border-bottom-color: #fff;
}

@media (min-width: 48em) {
  .masthead-brand {
    float: left;
  }
  .nav-masthead {
    float: right;
  }
}
/*
 * Footer
 */
.mastfoot {
  text-align:center;
  color: rgba(0, 0, 0, .5);
  text-shadow: 0 .05rem .1rem rgba(255, 255, 255, .5);
  box-shadow: inset 0 0 5rem rgba(255, 255, 255, .5);
}