svg-icons.less

.svg-icon-container {
    img.svg-icon {
        // SVG icons are invisible until SVG support is detected
        // with JavaScript to reduce flickering on page load.
        // This should be overridden in a specific control,
        // inside html.svg {}
        display: none;
    }

    &.svg-active-effects {
        img.svg-icon {
            -webkit-filter: grayscale(100%);
            filter: grayscale(100%);
            .opacity(0.6);
        }

        &:hover, &.active {
            img.svg-icon {
                -webkit-filter: none;
                filter: none;
                .opacity(1);
            }
        }
    }
}

html.svg {
    .svg-icon-container {
        i.svg-replace {
            display: none;
        }
    }
}