.w3-white,.w3-hover-white:hover{color:#000!important;background-color:#fff!important}
.w3-black,.w3-hover-black:hover{color:#fff!important;background-color:#000!important}
.w3-grey,.w3-hover-grey:hover,.w3-gray,.w3-hover-gray:hover{color:#000!important;background-color:#9e9e9e!important}
.w3-light-grey,.w3-hover-light-grey:hover,.w3-light-gray,.w3-hover-light-gray:hover{color:#000!important;background-color:#f1f1f1!important}
.w3-dark-grey,.w3-hover-dark-grey:hover,.w3-dark-gray,.w3-hover-dark-gray:hover{color:#fff!important;background-color:#616161!important}

/* Tema generado a partir de #808080 (https://www.w3schools.com/w3css/w3css_color_generator.asp) */
.w3-theme-l5 {color:#000 !important; background-color:#f7f7f7 !important}
.w3-theme-l4 {color:#000 !important; background-color:#e6e6e6 !important}
.w3-theme-l3 {color:#000 !important; background-color:#cccccc !important}
.w3-theme-l2 {color:#000 !important; background-color:#b3b3b3 !important}
.w3-theme-l1 {color:#000 !important; background-color:#999999 !important}
/* .w3-text-theme                             = color:#808080          */
.w3-theme-d1 {color:#fff !important; background-color:#737373 !important}
.w3-theme-d2 {color:#fff !important; background-color:#666666 !important}
.w3-theme-d3 {color:#fff !important; background-color:#595959 !important}
.w3-theme-d4 {color:#fff !important; background-color:#4d4d4d !important}
.w3-theme-d5 {color:#fff !important; background-color:#404040 !important}

.w3-theme-light {color:#000 !important; background-color:#f7f7f7 !important}
.w3-theme-dark {color:#fff !important; background-color:#404040 !important}
.w3-theme-action {color:#fff !important; background-color:#404040 !important}

.w3-theme {color:#fff !important; background-color:#808080 !important}
.w3-text-theme {color:#808080 !important}
.w3-border-theme {border-color:#808080 !important}

.w3-hover-theme:hover {color:#fff !important; background-color:#808080 !important}
.w3-hover-text-theme:hover {color:#808080 !important}
.w3-hover-border-theme:hover {border-color:#808080 !important}