Microsoft CSS extensions
Microsoft applications such as Edge and Internet Explorer support a number of special Microsoft extensions to CSS. These extensions are prefixed with -ms-
.
Microsoft-only properties (avoid using on websites)
Note: These properties will only work in Microsoft applications, and are not on a standards track.
-ms-accelerator
-ms-block-progression
-ms-content-zoom-chaining
-ms-content-zooming
-ms-content-zoom-limit
-ms-content-zoom-limit-max
-ms-content-zoom-limit-min
-ms-content-zoom-snap
-ms-content-zoom-snap-points
-ms-content-zoom-snap-type
-ms-filter
-ms-flow-from
-ms-flow-into
-ms-high-contrast-adjust
-ms-hyphenate-limit-chars
-ms-hyphenate-limit-lines
-ms-hyphenate-limit-zone
-ms-ime-align
-ms-overflow-style
-ms-scrollbar-3dlight-color
-ms-scrollbar-arrow-color
-ms-scrollbar-base-color
-ms-scrollbar-darkshadow-color
-ms-scrollbar-face-color
-ms-scrollbar-highlight-color
-ms-scrollbar-shadow-color
-ms-scrollbar-track-color
-ms-scroll-chaining
-ms-scroll-limit
-ms-scroll-limit-x-max
-ms-scroll-limit-x-min
-ms-scroll-limit-y-max
-ms-scroll-limit-y-min
-ms-scroll-rails
-ms-scroll-snap-points-x
-ms-scroll-snap-points-y
-ms-scroll-snap-x
-ms-scroll-snap-y
-ms-scroll-translation
-ms-text-autospace
-ms-touch-select
-ms-wrap-flow
-ms-wrap-margin
-ms-wrap-through
zoom
Pseudo-elements
::-ms-browse
*::-ms-check
::-ms-clear
::-ms-expand
::-ms-fill
::-ms-fill-lower
::-ms-fill-upper
::-ms-reveal
::-ms-thumb
::-ms-ticks-after
::-ms-ticks-before
::-ms-tooltip
::-ms-track
::-ms-value
* Now standard.