Vmeda.Online/src/components/mark-required/mark-required.scss

*[core-mark-required] {
    .core-input-required-asterisk, .icon.core-input-required-asterisk {
        color: $red !important;
        font-size: 8px;
        padding-left: 4px;
        line-height: 100%;
        vertical-align: top;
    }
}