Simpler carousel indicators css (#26996)

scss/_carousel.scss

@@ -170,7 +170,7 @@
 .carousel-indicators {
   position: absolute;
   right: 0;
-  bottom: 10px;
+  bottom: 0;
   left: 0;
   z-index: 15;
   display: flex;
@@ -182,7 +182,7 @@
   list-style: none;
 
   li {
-    position: relative;
+    box-sizing: content-box;
     flex: 0 1 auto;
     width: $carousel-indicator-width;
     height: $carousel-indicator-height;
@@ -191,28 +191,12 @@
     text-indent: -999px;
     cursor: pointer;
     background-color: $carousel-indicator-active-bg;
+    background-clip: padding-box;
+    // Use transparent borders to increase the hit area by 10px on top and bottom.
+    border-top: $carousel-indicator-hit-area-height solid transparent;
+    border-bottom: $carousel-indicator-hit-area-height solid transparent;
     opacity: .5;
     @include transition($carousel-indicator-transition);
-
-    // Use pseudo classes to increase the hit area by 10px on top and bottom.
-    &::before {
-      position: absolute;
-      top: -10px;
-      left: 0;
-      display: inline-block;
-      width: 100%;
-      height: 10px;
-      content: "";
-    }
-    &::after {
-      position: absolute;
-      bottom: -10px;
-      left: 0;
-      display: inline-block;
-      width: 100%;
-      height: 10px;
-      content: "";
-    }
   }
 
   .active {

scss/_variables.scss

@@ -924,25 +924,26 @@ $breadcrumb-border-radius:          $border-radius !default;
 
 // Carousel
 
-$carousel-control-color:            $white !default;
-$carousel-control-width:            15% !default;
-$carousel-control-opacity:          .5 !default;
+$carousel-control-color:             $white !default;
+$carousel-control-width:             15% !default;
+$carousel-control-opacity:           .5 !default;
 
-$carousel-indicator-width:          30px !default;
-$carousel-indicator-height:         3px !default;
-$carousel-indicator-spacer:         3px !default;
-$carousel-indicator-active-bg:      $white !default;
-$carousel-indicator-transition:     opacity .6s ease !default;
+$carousel-indicator-width:           30px !default;
+$carousel-indicator-height:          3px !default;
+$carousel-indicator-hit-area-height: 10px !default;
+$carousel-indicator-spacer:          3px !default;
+$carousel-indicator-active-bg:       $white !default;
+$carousel-indicator-transition:      opacity .6s ease !default;
 
-$carousel-caption-width:            70% !default;
-$carousel-caption-color:            $white !default;
+$carousel-caption-width:             70% !default;
+$carousel-caption-color:             $white !default;
 
-$carousel-control-icon-width:       20px !default;
+$carousel-control-icon-width:        20px !default;
 
-$carousel-control-prev-icon-bg:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"), "#", "%23") !default;
-$carousel-control-next-icon-bg:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E"), "#", "%23") !default;
+$carousel-control-prev-icon-bg:      str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"), "#", "%23") !default;
+$carousel-control-next-icon-bg:      str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E"), "#", "%23") !default;
 
-$carousel-transition:               transform .6s ease !default; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)
+$carousel-transition:                transform .6s ease !default; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)
 
 
 // Close