MediaWiki:Common.css

.portable-infobox {
   width: 35%;
}

.portable-infobox .pi-secondary-background {
   background-color: cyan;
}

.portable-infobox .pi-border-color {
   border-color: cyan;
}

.portable-infobox .pi-title {
  padding-top:14px;
  font-size:20px;
  font-weight:bold;
  line-height:24px;
  background-color: rgba(0,100,100,0.8);
  color: cyan;
  border-radius: 10px 10px 0 0;
}

.portable-infobox .pi-title {

}

@media screen {
    /* search button */
    .wvui-button:not([disabled]) {
        color: #color of search button text;
    }
    .wvui-button--framed:not([disabled]) {
        background-color: #color of search button;
        border-color: #search button border color;
    }
    
    /* dropdown search suggestions */
    .wvui-typeahead-search__suggestions {
        background-color: #background color;
        border-color: #border color;
    }
    .wvui-typeahead-suggestion:not(.wvui-typeahead-suggestion--active) .wvui-typeahead-suggestion__title {
        color: #default color of suggested pages' titles;
    }
    .wvui-typeahead-suggestion--active .wvui-typeahead-suggestion__title {
        color: #color of highlighted suggested page title;
    }
}