#back-top {
  display: none;
}
.site-title {
    font-size: 27px;
    line-height: 50px;
    font-weight: bold;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active,
.btn-primary.disabled,
.btn-primary[disabled] {
  background-color: #3a2f2f;
}