Add support for fractional viewport widths (zoom/high-dpi displays)

docs/4.0/content/tables.md

@@ -581,7 +581,7 @@ Regular table background variants are not available with the dark table, however
 
 ## Responsive tables
 
-Create responsive tables by adding `.table-responsive{-sm|-md|-lg|-xl}` to any `.table` to make them scroll horizontally at each `max-width` breakpoint 575px, 767px, 991px, and 1199px, respectively.
+Create responsive tables by adding `.table-responsive{-sm|-md|-lg|-xl}` to any `.table` to make them scroll horizontally at each `max-width` breakpoint just below 576px, 768px, 992px, and 1200px, respectively.
 
 For responsive tables that always scroll horizontally when the table is wider than its container, add the `.table-responsive` class on `.table`.
 

docs/4.0/examples/offcanvas/offcanvas.css

@@ -17,7 +17,7 @@ footer {
  * Off Canvas
  * --------------------------------------------------
  */
-@media screen and (max-width: 767px) {
+@media screen and (max-width: 767.99px) {
   .row-offcanvas {
     position: relative;
     transition: all .25s ease-out;

docs/4.0/layout/overview.md

@@ -88,16 +88,16 @@ We occasionally use media queries that go in the other direction (the given scre
 
 {% highlight scss %}
 // Extra small devices (portrait phones, less than 576px)
-@media (max-width: 575px) { ... }
+@media (max-width: 575.99px) { ... }
 
 // Small devices (landscape phones, less than 768px)
-@media (max-width: 767px) { ... }
+@media (max-width: 767.99px) { ... }
 
 // Medium devices (tablets, less than 992px)
-@media (max-width: 991px) { ... }
+@media (max-width: 991.99px) { ... }
 
 // Large devices (desktops, less than 1200px)
-@media (max-width: 1199px) { ... }
+@media (max-width: 1199.99px) { ... }
 
 // Extra large devices (large desktops)
 // No media query since the extra-large breakpoint has no upper bound on its width
@@ -116,16 +116,16 @@ There are also media queries and mixins for targeting a single segment of screen
 
 {% highlight scss %}
 // Extra small devices (portrait phones, less than 576px)
-@media (max-width: 575px) { ... }
+@media (max-width: 575.99px) { ... }
 
 // Small devices (landscape phones, 576px and up)
-@media (min-width: 576px) and (max-width: 767px) { ... }
+@media (min-width: 576px) and (max-width: 767.99px) { ... }
 
 // Medium devices (tablets, 768px and up)
-@media (min-width: 768px) and (max-width: 991px) { ... }
+@media (min-width: 768px) and (max-width: 991.99px) { ... }
 
 // Large devices (desktops, 992px and up)
-@media (min-width: 992px) and (max-width: 1199px) { ... }
+@media (min-width: 992px) and (max-width: 1199.99px) { ... }
 
 // Extra large devices (large desktops, 1200px and up)
 @media (min-width: 1200px) { ... }
@@ -146,7 +146,7 @@ Similarly, media queries may span multiple breakpoint widths:
 {% highlight scss %}
 // Example
 // Apply styles starting from medium devices and up to extra large devices
-@media (min-width: 768px) and (max-width: 1199px) { ... }
+@media (min-width: 768px) and (max-width: 1199.99px) { ... }
 {% endhighlight %}
 
 The Sass mixin for targeting the same screen size range would be:

scss/mixins/_breakpoints.scss

@@ -29,13 +29,13 @@
 }
 
 // Maximum breakpoint width. Null for the largest (last) breakpoint.
-// The maximum value is calculated as the minimum of the next one less 0.1.
+// The maximum value is calculated as the minimum of the next one less 0.01px.
 //
 //    >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
 //    767px
 @function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
   $next: breakpoint-next($name, $breakpoints);
-  @return if($next, breakpoint-min($next, $breakpoints) - 1px, null);
+  @return if($next, breakpoint-min($next, $breakpoints) - .01px, null);
 }
 
 // Returns a blank string if smallest breakpoint, otherwise returns the name with a dash infront.