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$custom-range-track-cursor;\n    background-color: $custom-range-track-bg;\n    border-color: transparent; // Firefox specific?\n    @include border-radius($custom-range-track-border-radius);\n    @include box-shadow($custom-range-track-box-shadow);\n  }\n\n  &::-ms-thumb {\n    width: $custom-range-thumb-width;\n    height: $custom-range-thumb-height;\n    margin-top: 0; // Edge specific\n    margin-right: $custom-range-thumb-focus-box-shadow-width; // Workaround that overflowed box-shadow is hidden.\n...