span.twitter-typeahead {
    width: 100%;
}
.tt-dataset {
    background-color: white;
    cursor: pointer;
}
.tt-selectable:hover {
    background-color: #ddd;
}

.search .typeahead {
    border-top: 0;
    border-left: 0;
    border-right: 0;
    width: 150px;
}
.search .search_submit, .search .search_submit:hover {
    border: 0;
    background-color: #fff;
}