html {
  box-sizing: border-box;
  background: #262626;
  font-family: "helvetica neue";
  font-weight: 200;
}

body {
  margin: auto;
  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
}

*,
*:before,
*:after {
  box-sizing: inherit;
}

.btn-secondary,
.btn-secondary:hover,
.btn-secondary:focus {
  color: #333;
  text-shadow: none; 
}

.nav-masthead .nav-link {
  color: rgba(255, 255, 255, .5);
  border-bottom: .25rem solid transparent;
}

.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;
}

#exercise-1 {
  text-align: left;
}

#exercise-text {
  text-align: left;
}

hr {
  border: 3pt solid;
  width: 100%;
  margin: 3rem 0;
}

.reflections {
  margin: 50px;
  padding: 20px;
}