easier control within type scales as it avoids margin collapsing.\n\n%heading {\n  margin-top: 0; // 1\n  margin-bottom: $headings-margin-bottom;\n  font-family: $headings-font-family;\n  font-style: $headings-font-style;\n  font-weight: $headings-font-weight;\n  line-height: $headings-line-height;\n  color: var(--#{$prefix}heading-color);\n}\n\nh1 {\n  @extend %heading;\n  @include font-size($h1-font-size);\n}\n\nh2 {\n  @extend %heading;\n  @include font-size($h2-font-size);\n}\n\nh3 {\n  @extend %heading;\n...

}\n}\n\n.jumbotron-fluid {\n  padding-right: 0;\n  padding-left: 0;\n  border-radius: 0;\n}\n\n.alert {\n  position: relative;\n  padding: 0.75rem 1.25rem;\n  margin-bottom: 1rem;\n  border: 1px solid transparent;\n  border-radius: 0.25rem;\n}\n\n.alert-heading {\n  color: inherit;\n}\n\n.alert-link {\n  font-weight: 700;\n}\n\n.alert-dismissible {\n  padding-right: 4rem;\n}\n\n.alert-dismissible .close {\n  position: absolute;\n  top: 0;\n  right: 0;\n  z-index: 2;\n  padding: 0.75rem 1.25rem;\n  color:...