.btn {
  margin: 0px 5px 0 0;
}

#container {
  text-align: center;
  background-color: #343a40;
}

.navbar-brand {
    transform: translateX(-50%);
    left: 50%;
    position: absolute;
  }

#bars {
  display: inline-block;
}

.bar {
  float: left;
}

.parameters {
  display: flex;
}
.slider {
  margin: 9.5px 14px 0 0;
}
.labels {
  color: white; 
  text-align:center;
  vertical-align:middle;
}