more flex grid stuff

scss/_grid.scss

@@ -44,8 +44,15 @@
 
 @include make-grid-columns();
 
-// Flex column reordering
+
+// Flex variation
+//
+// Custom styles for additional flex alignment options.
+
 @if $enable-flex {
+
+  // Flex column reordering
+
   .col-xs-first { order: -1; }
   .col-xs-last { order: 1; }
 
@@ -53,19 +60,71 @@
     .col-sm-first { order: -1; }
     .col-sm-last { order: 1; }
   }
-
   @include media-breakpoint-up(md) {
     .col-md-first { order: -1; }
     .col-md-last { order: 1; }
   }
-
   @include media-breakpoint-up(lg) {
     .col-lg-first { order: -1; }
     .col-lg-last { order: 1; }
   }
-
   @include media-breakpoint-up(xl) {
     .col-xl-first { order: -1; }
     .col-xl-last { order: 1; }
   }
-}
+
+  // Alignment for every column in row
+
+  .row-xs-top    { align-items: flex-start; }
+  .row-xs-center { align-items: center; }
+  .row-xs-bottom { align-items: flex-end; }
+
+  @include media-breakpoint-up(sm) {
+    .row-sm-top    { align-items: flex-start; }
+    .row-sm-center { align-items: center; }
+    .row-sm-bottom { align-items: flex-end; }
+  }
+  @include media-breakpoint-up(md) {
+    .row-md-top    { align-items: flex-start; }
+    .row-md-center { align-items: center; }
+    .row-md-bottom { align-items: flex-end; }
+  }
+  @include media-breakpoint-up(lg) {
+    .row-lg-top    { align-items: flex-start; }
+    .row-lg-center { align-items: center; }
+    .row-lg-bottom { align-items: flex-end; }
+  }
+  @include media-breakpoint-up(xl) {
+    .row-xl-top    { align-items: flex-start; }
+    .row-xl-center { align-items: center; }
+    .row-xl-bottom { align-items: flex-end; }
+  }
+
+  // Alignment per column
+
+  .col-xs-top    { align-self: flex-start; }
+  .col-xs-center { align-self: center; }
+  .col-xs-bottom { align-self: flex-end; }
+
+  @include media-breakpoint-up(sm) {
+    .col-sm-top    { align-self: flex-start; }
+    .col-sm-center { align-self: center; }
+    .col-sm-bottom { align-self: flex-end; }
+  }
+  @include media-breakpoint-up(md) {
+    .col-md-top    { align-self: flex-start; }
+    .col-md-center { align-self: center; }
+    .col-md-bottom { align-self: flex-end; }
+  }
+  @include media-breakpoint-up(lg) {
+    .col-lg-top    { align-self: flex-start; }
+    .col-lg-center { align-self: center; }
+    .col-lg-bottom { align-self: flex-end; }
+  }
+  @include media-breakpoint-up(xl) {
+    .col-xl-top    { align-self: flex-start; }
+    .col-xl-center { align-self: center; }
+    .col-xl-bottom { align-self: flex-end; }
+  }
+
+}
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