diff --git a/docs/assets/css/docs-flexbox.min.css b/docs/assets/css/docs-flexbox.min.css
deleted file mode 100644
index 1042bd23ad55ff864bf5db86cf8c5202ffdacbb1..0000000000000000000000000000000000000000
--- a/docs/assets/css/docs-flexbox.min.css
+++ /dev/null
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-  .push-sm-7 {
-    left: 58.333333%;
-  }
-  .push-sm-8 {
-    left: 66.666667%;
-  }
-  .push-sm-9 {
-    left: 75%;
-  }
-  .push-sm-10 {
-    left: 83.333333%;
-  }
-  .push-sm-11 {
-    left: 91.666667%;
-  }
-  .push-sm-12 {
-    left: 100%;
-  }
-  .offset-sm-0 {
-    margin-left: 0%;
-  }
-  .offset-sm-1 {
-    margin-left: 8.333333%;
-  }
-  .offset-sm-2 {
-    margin-left: 16.666667%;
-  }
-  .offset-sm-3 {
-    margin-left: 25%;
-  }
-  .offset-sm-4 {
-    margin-left: 33.333333%;
-  }
-  .offset-sm-5 {
-    margin-left: 41.666667%;
-  }
-  .offset-sm-6 {
-    margin-left: 50%;
-  }
-  .offset-sm-7 {
-    margin-left: 58.333333%;
-  }
-  .offset-sm-8 {
-    margin-left: 66.666667%;
-  }
-  .offset-sm-9 {
-    margin-left: 75%;
-  }
-  .offset-sm-10 {
-    margin-left: 83.333333%;
-  }
-  .offset-sm-11 {
-    margin-left: 91.666667%;
-  }
-}
-
-@media (min-width: 768px) {
-  .col-md {
-    flex-basis: 0;
-    flex-grow: 1;
-    max-width: 100%;
-  }
-  .col-md-auto {
-    flex: 0 0 auto;
-    width: auto;
-  }
-  .col-md-1 {
-    flex: 0 0 8.333333%;
-    max-width: 8.333333%;
-  }
-  .col-md-2 {
-    flex: 0 0 16.666667%;
-    max-width: 16.666667%;
-  }
-  .col-md-3 {
-    flex: 0 0 25%;
-    max-width: 25%;
-  }
-  .col-md-4 {
-    flex: 0 0 33.333333%;
-    max-width: 33.333333%;
-  }
-  .col-md-5 {
-    flex: 0 0 41.666667%;
-    max-width: 41.666667%;
-  }
-  .col-md-6 {
-    flex: 0 0 50%;
-    max-width: 50%;
-  }
-  .col-md-7 {
-    flex: 0 0 58.333333%;
-    max-width: 58.333333%;
-  }
-  .col-md-8 {
-    flex: 0 0 66.666667%;
-    max-width: 66.666667%;
-  }
-  .col-md-9 {
-    flex: 0 0 75%;
-    max-width: 75%;
-  }
-  .col-md-10 {
-    flex: 0 0 83.333333%;
-    max-width: 83.333333%;
-  }
-  .col-md-11 {
-    flex: 0 0 91.666667%;
-    max-width: 91.666667%;
-  }
-  .col-md-12 {
-    flex: 0 0 100%;
-    max-width: 100%;
-  }
-  .pull-md-0 {
-    right: auto;
-  }
-  .pull-md-1 {
-    right: 8.333333%;
-  }
-  .pull-md-2 {
-    right: 16.666667%;
-  }
-  .pull-md-3 {
-    right: 25%;
-  }
-  .pull-md-4 {
-    right: 33.333333%;
-  }
-  .pull-md-5 {
-    right: 41.666667%;
-  }
-  .pull-md-6 {
-    right: 50%;
-  }
-  .pull-md-7 {
-    right: 58.333333%;
-  }
-  .pull-md-8 {
-    right: 66.666667%;
-  }
-  .pull-md-9 {
-    right: 75%;
-  }
-  .pull-md-10 {
-    right: 83.333333%;
-  }
-  .pull-md-11 {
-    right: 91.666667%;
-  }
-  .pull-md-12 {
-    right: 100%;
-  }
-  .push-md-0 {
-    left: auto;
-  }
-  .push-md-1 {
-    left: 8.333333%;
-  }
-  .push-md-2 {
-    left: 16.666667%;
-  }
-  .push-md-3 {
-    left: 25%;
-  }
-  .push-md-4 {
-    left: 33.333333%;
-  }
-  .push-md-5 {
-    left: 41.666667%;
-  }
-  .push-md-6 {
-    left: 50%;
-  }
-  .push-md-7 {
-    left: 58.333333%;
-  }
-  .push-md-8 {
-    left: 66.666667%;
-  }
-  .push-md-9 {
-    left: 75%;
-  }
-  .push-md-10 {
-    left: 83.333333%;
-  }
-  .push-md-11 {
-    left: 91.666667%;
-  }
-  .push-md-12 {
-    left: 100%;
-  }
-  .offset-md-0 {
-    margin-left: 0%;
-  }
-  .offset-md-1 {
-    margin-left: 8.333333%;
-  }
-  .offset-md-2 {
-    margin-left: 16.666667%;
-  }
-  .offset-md-3 {
-    margin-left: 25%;
-  }
-  .offset-md-4 {
-    margin-left: 33.333333%;
-  }
-  .offset-md-5 {
-    margin-left: 41.666667%;
-  }
-  .offset-md-6 {
-    margin-left: 50%;
-  }
-  .offset-md-7 {
-    margin-left: 58.333333%;
-  }
-  .offset-md-8 {
-    margin-left: 66.666667%;
-  }
-  .offset-md-9 {
-    margin-left: 75%;
-  }
-  .offset-md-10 {
-    margin-left: 83.333333%;
-  }
-  .offset-md-11 {
-    margin-left: 91.666667%;
-  }
-}
-
-@media (min-width: 992px) {
-  .col-lg {
-    flex-basis: 0;
-    flex-grow: 1;
-    max-width: 100%;
-  }
-  .col-lg-auto {
-    flex: 0 0 auto;
-    width: auto;
-  }
-  .col-lg-1 {
-    flex: 0 0 8.333333%;
-    max-width: 8.333333%;
-  }
-  .col-lg-2 {
-    flex: 0 0 16.666667%;
-    max-width: 16.666667%;
-  }
-  .col-lg-3 {
-    flex: 0 0 25%;
-    max-width: 25%;
-  }
-  .col-lg-4 {
-    flex: 0 0 33.333333%;
-    max-width: 33.333333%;
-  }
-  .col-lg-5 {
-    flex: 0 0 41.666667%;
-    max-width: 41.666667%;
-  }
-  .col-lg-6 {
-    flex: 0 0 50%;
-    max-width: 50%;
-  }
-  .col-lg-7 {
-    flex: 0 0 58.333333%;
-    max-width: 58.333333%;
-  }
-  .col-lg-8 {
-    flex: 0 0 66.666667%;
-    max-width: 66.666667%;
-  }
-  .col-lg-9 {
-    flex: 0 0 75%;
-    max-width: 75%;
-  }
-  .col-lg-10 {
-    flex: 0 0 83.333333%;
-    max-width: 83.333333%;
-  }
-  .col-lg-11 {
-    flex: 0 0 91.666667%;
-    max-width: 91.666667%;
-  }
-  .col-lg-12 {
-    flex: 0 0 100%;
-    max-width: 100%;
-  }
-  .pull-lg-0 {
-    right: auto;
-  }
-  .pull-lg-1 {
-    right: 8.333333%;
-  }
-  .pull-lg-2 {
-    right: 16.666667%;
-  }
-  .pull-lg-3 {
-    right: 25%;
-  }
-  .pull-lg-4 {
-    right: 33.333333%;
-  }
-  .pull-lg-5 {
-    right: 41.666667%;
-  }
-  .pull-lg-6 {
-    right: 50%;
-  }
-  .pull-lg-7 {
-    right: 58.333333%;
-  }
-  .pull-lg-8 {
-    right: 66.666667%;
-  }
-  .pull-lg-9 {
-    right: 75%;
-  }
-  .pull-lg-10 {
-    right: 83.333333%;
-  }
-  .pull-lg-11 {
-    right: 91.666667%;
-  }
-  .pull-lg-12 {
-    right: 100%;
-  }
-  .push-lg-0 {
-    left: auto;
-  }
-  .push-lg-1 {
-    left: 8.333333%;
-  }
-  .push-lg-2 {
-    left: 16.666667%;
-  }
-  .push-lg-3 {
-    left: 25%;
-  }
-  .push-lg-4 {
-    left: 33.333333%;
-  }
-  .push-lg-5 {
-    left: 41.666667%;
-  }
-  .push-lg-6 {
-    left: 50%;
-  }
-  .push-lg-7 {
-    left: 58.333333%;
-  }
-  .push-lg-8 {
-    left: 66.666667%;
-  }
-  .push-lg-9 {
-    left: 75%;
-  }
-  .push-lg-10 {
-    left: 83.333333%;
-  }
-  .push-lg-11 {
-    left: 91.666667%;
-  }
-  .push-lg-12 {
-    left: 100%;
-  }
-  .offset-lg-0 {
-    margin-left: 0%;
-  }
-  .offset-lg-1 {
-    margin-left: 8.333333%;
-  }
-  .offset-lg-2 {
-    margin-left: 16.666667%;
-  }
-  .offset-lg-3 {
-    margin-left: 25%;
-  }
-  .offset-lg-4 {
-    margin-left: 33.333333%;
-  }
-  .offset-lg-5 {
-    margin-left: 41.666667%;
-  }
-  .offset-lg-6 {
-    margin-left: 50%;
-  }
-  .offset-lg-7 {
-    margin-left: 58.333333%;
-  }
-  .offset-lg-8 {
-    margin-left: 66.666667%;
-  }
-  .offset-lg-9 {
-    margin-left: 75%;
-  }
-  .offset-lg-10 {
-    margin-left: 83.333333%;
-  }
-  .offset-lg-11 {
-    margin-left: 91.666667%;
-  }
-}
-
-@media (min-width: 1200px) {
-  .col-xl {
-    flex-basis: 0;
-    flex-grow: 1;
-    max-width: 100%;
-  }
-  .col-xl-auto {
-    flex: 0 0 auto;
-    width: auto;
-  }
-  .col-xl-1 {
-    flex: 0 0 8.333333%;
-    max-width: 8.333333%;
-  }
-  .col-xl-2 {
-    flex: 0 0 16.666667%;
-    max-width: 16.666667%;
-  }
-  .col-xl-3 {
-    flex: 0 0 25%;
-    max-width: 25%;
-  }
-  .col-xl-4 {
-    flex: 0 0 33.333333%;
-    max-width: 33.333333%;
-  }
-  .col-xl-5 {
-    flex: 0 0 41.666667%;
-    max-width: 41.666667%;
-  }
-  .col-xl-6 {
-    flex: 0 0 50%;
-    max-width: 50%;
-  }
-  .col-xl-7 {
-    flex: 0 0 58.333333%;
-    max-width: 58.333333%;
-  }
-  .col-xl-8 {
-    flex: 0 0 66.666667%;
-    max-width: 66.666667%;
-  }
-  .col-xl-9 {
-    flex: 0 0 75%;
-    max-width: 75%;
-  }
-  .col-xl-10 {
-    flex: 0 0 83.333333%;
-    max-width: 83.333333%;
-  }
-  .col-xl-11 {
-    flex: 0 0 91.666667%;
-    max-width: 91.666667%;
-  }
-  .col-xl-12 {
-    flex: 0 0 100%;
-    max-width: 100%;
-  }
-  .pull-xl-0 {
-    right: auto;
-  }
-  .pull-xl-1 {
-    right: 8.333333%;
-  }
-  .pull-xl-2 {
-    right: 16.666667%;
-  }
-  .pull-xl-3 {
-    right: 25%;
-  }
-  .pull-xl-4 {
-    right: 33.333333%;
-  }
-  .pull-xl-5 {
-    right: 41.666667%;
-  }
-  .pull-xl-6 {
-    right: 50%;
-  }
-  .pull-xl-7 {
-    right: 58.333333%;
-  }
-  .pull-xl-8 {
-    right: 66.666667%;
-  }
-  .pull-xl-9 {
-    right: 75%;
-  }
-  .pull-xl-10 {
-    right: 83.333333%;
-  }
-  .pull-xl-11 {
-    right: 91.666667%;
-  }
-  .pull-xl-12 {
-    right: 100%;
-  }
-  .push-xl-0 {
-    left: auto;
-  }
-  .push-xl-1 {
-    left: 8.333333%;
-  }
-  .push-xl-2 {
-    left: 16.666667%;
-  }
-  .push-xl-3 {
-    left: 25%;
-  }
-  .push-xl-4 {
-    left: 33.333333%;
-  }
-  .push-xl-5 {
-    left: 41.666667%;
-  }
-  .push-xl-6 {
-    left: 50%;
-  }
-  .push-xl-7 {
-    left: 58.333333%;
-  }
-  .push-xl-8 {
-    left: 66.666667%;
-  }
-  .push-xl-9 {
-    left: 75%;
-  }
-  .push-xl-10 {
-    left: 83.333333%;
-  }
-  .push-xl-11 {
-    left: 91.666667%;
-  }
-  .push-xl-12 {
-    left: 100%;
-  }
-  .offset-xl-0 {
-    margin-left: 0%;
-  }
-  .offset-xl-1 {
-    margin-left: 8.333333%;
-  }
-  .offset-xl-2 {
-    margin-left: 16.666667%;
-  }
-  .offset-xl-3 {
-    margin-left: 25%;
-  }
-  .offset-xl-4 {
-    margin-left: 33.333333%;
-  }
-  .offset-xl-5 {
-    margin-left: 41.666667%;
-  }
-  .offset-xl-6 {
-    margin-left: 50%;
-  }
-  .offset-xl-7 {
-    margin-left: 58.333333%;
-  }
-  .offset-xl-8 {
-    margin-left: 66.666667%;
-  }
-  .offset-xl-9 {
-    margin-left: 75%;
-  }
-  .offset-xl-10 {
-    margin-left: 83.333333%;
-  }
-  .offset-xl-11 {
-    margin-left: 91.666667%;
-  }
-}
-
-/*# sourceMappingURL=docs-flexbox.min.css.map */
\ No newline at end of file
diff --git a/docs/assets/css/docs-flexbox.min.css.map b/docs/assets/css/docs-flexbox.min.css.map
deleted file mode 100644
index dbce3b2b7d2b6e149217e90193eb7e583e963b24..0000000000000000000000000000000000000000
Binary files a/docs/assets/css/docs-flexbox.min.css.map and /dev/null differ
diff --git a/docs/assets/scss/flex-grid.scss b/docs/assets/scss/flex-grid.scss
deleted file mode 100644
index 725a4aa6821c6498e4929cbc0713be3715552cdd..0000000000000000000000000000000000000000
--- a/docs/assets/scss/flex-grid.scss
+++ /dev/null
@@ -1,33 +0,0 @@
-// Bootstrap flexbox grid for our docs page
-
-
-//
-// Variables
-//
-
-@import "custom";
-@import "variables";
-
-// Override for flexbox mode
-$enable-flex: true;
-
-//
-// Grid mixins
-//
-
-@import "mixins/clearfix";
-@import "mixins/breakpoints";
-@import "mixins/grid-framework";
-@import "mixins/grid";
-
-//
-// Utilities for flex alignment
-//
-
-@import "utilities/flex";
-
-//
-// Generate the grid class
-//
-
-@import "grid";
diff --git a/scss/_card.scss b/scss/_card.scss
index 9857ea2d986aa78702b7f88e74cad92ea5249fa6..9fe70e8cf6d262e4c6de6e8529c9b74f65c7897e 100644
--- a/scss/_card.scss
+++ b/scss/_card.scss
@@ -182,14 +182,7 @@
 }
 
 
-// Card set
-//
-// Heads up! We do some funky style resetting here for margins across our two
-// variations (one flex, one table). Individual cards have margin-bottom by
-// default, but they're ignored due to table styles. For a consistent design,
-// we've done the same to the flex variation.
-//
-// Those changes are noted by `// Margin balancing`.
+// Card deck
 
 @include media-breakpoint-up(sm) {
   .card-deck {
diff --git a/scss/bootstrap-grid.scss b/scss/bootstrap-grid.scss
index 1df8ea3b6da2ec4449fc7f557d1dd3333074c87e..e8d5424adbfec4767835430d3ac65e9511900215 100644
--- a/scss/bootstrap-grid.scss
+++ b/scss/bootstrap-grid.scss
@@ -1,7 +1,7 @@
 // Bootstrap Grid only
 //
-// Includes relevant variables and mixins for the regular (non-flexbox) grid
-// system, as well as the generated predefined classes (e.g., `.col-4-sm`).
+// Includes relevant variables and mixins for the flexbox grid
+// system, as well as the generated predefined classes (e.g., `.col-sm-4`).
 
 //
 // Box sizing, responsive, and more