I guess could have provided a little more detail... the part of my custom widget I'm looking at uses an instance of Search (JSAPI 3.x). Code looks like this:
this.mySearch = new Search({
sources: [ <list of sources> ] ,
map: this.map,
popupEnabled: false,
autoSelect: false,
enableSourcesMenu: false,
enableSuggestions: true,
maxSuggestions: 5,
allPlaceholder: "Example: John Wayne",
autoNavigate: false
}, "mySearch");
this.mySearch.startup();
This puts a sweet little search window with suggestions in my widget. Everything is working great, except the scrollbar. Where do I tweak this? My style.css is blank.