.popper-menu {
    border: medium none;
    border-radius: 3px;
    box-shadow: 0 0 3px rgba(86, 96, 117, 0.7);
    display: none;
    font-size: 12px;
    list-style: none outside none;
    padding: 0;
    text-shadow: none;
    background: #fff;
    box-sizing:content-box;
    padding:15px;
    width:calc(100% - 60px);
    z-index:1000;
}

.popper-menu[data-show] {
    display: block;
}

.popper button.form-control {
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

/*
    .popper-menu:after {
        position: absolute;
        top: -6px;
        left: 10px;
        display: inline-block;
        border-right: 6px solid transparent;
        border-bottom: 6px solid #fff;
        border-left: 6px solid transparent;
        content: '';
    }
*/