input-group > .twitter-typeahead {
    position: relative;
    -ms-flex: 1 1 auto;
    -webkit-box-flex: 1;
    flex: 1 1 auto;
    width: 1%;
    margin-bottom: 0;
}

.input-group > .twitter-typeahead:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group > .twitter-typeahead > .tt-input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.form-control.tt-input:focus {
    z-index: 3
}
span.twitter-typeahead .tt-menu {
    cursor: pointer;
}

.dropdown-menu, span.twitter-typeahead .tt-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    float: left;
    min-width: 160px;
    padding: 5px 0;
    margin: 2px 0 0;
    font-size: 1rem;
    color: #373a3c;
    text-align: left;
    list-style: none;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 0.25rem;
}

span.twitter-typeahead .tt-suggestion {
    display: block;
    width: 100%;
    padding: 3px 20px;
    clear: both;
    font-weight: normal;
    line-height: 1.5;
    color: #373a3c;
    text-align: inherit;
    white-space: nowrap;
    background: none;
    border: 0;
}

    span.twitter-typeahead .tt-suggestion:focus, .dropdown-item:hover, span.twitter-typeahead .tt-suggestion:hover {
        color: #2b2d2f;
        text-decoration: none;
        background-color: #f5f5f5;
    }

    span.twitter-typeahead .active.tt-suggestion, span.twitter-typeahead .tt-suggestion.tt-cursor, span.twitter-typeahead .active.tt-suggestion:focus, span.twitter-typeahead .tt-suggestion.tt-cursor:focus, span.twitter-typeahead .active.tt-suggestion:hover, span.twitter-typeahead .tt-suggestion.tt-cursor:hover {
        color: #fff;
        text-decoration: none;
        background-color: #0275d8;
        outline: 0;
    }

span.twitter-typeahead .disabled.tt-suggestion, span.twitter-typeahead .disabled.tt-suggestion:focus, span.twitter-typeahead .disabled.tt-suggestion:hover {
    color: #818a91;
}

    span.twitter-typeahead .disabled.tt-suggestion:focus, span.twitter-typeahead .disabled.tt-suggestion:hover {
        text-decoration: none;
        cursor: not-allowed;
        background-color: transparent;
        background-image: none;
        filter: "progid:DXImageTransform.Microsoft.gradient(enabled = false)";
    }

span.twitter-typeahead {
    width: 100%;
}

.input-group span.twitter-typeahead {
    display: block !important;
}

    .input-group span.twitter-typeahead .tt-menu {
        top: 2.375rem !important;
    }


.tt-menu { /* UPDATE: newer versions use tt-menu instead of tt-dropdown-menu */
    width: 422px;
    margin-top: 12px;
    padding: 8px 0;
    background-color: #fff;
    border: 1px solid #ccc;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    box-shadow: 0 5px 10px rgba(0,0,0,.2);
}
.input-group > .twitter-typeahead {
    flex: 1 1 auto;
    width: auto;
}