multiselect {
    display:block;
}
multiselect .btn {
    width: 100%;
    background-color: #FFF;
}
multiselect .btn.error{
    border: 1px solid #da4f49 !important;
}
multiselect .dropdown-menu {
    max-height: 300px;
    overflow-y: auto;
}
multiselect .dropdown-menu {
    width: 100%;
    box-sizing: border-box;
    padding: 2px;
}
multiselect .dropdown-menu > li > a {
    padding: 3px 10px;
    cursor:pointer;
}