btcpayserver/BTCPayServer/wwwroot/checkout/css/vex-extrastyles.css

.vexmenu {
    margin: 0;
    list-style: none;
    padding: 0;
}

.vexmenuitem {
    display: block;
    float: none;
    line-height: inherit;
    position: relative;
    list-style: none;
    cursor: pointer;
    padding: 5px;
    border-bottom: 1px solid #eee;
}

    .vexmenuitem a {
        display: block;
    }

        .vexmenuitem a span {
            float: right;
            color: gray;
        }

.vexmenuitem:hover {
    background-color: #eee;
}

.vexmenuitem:last-child {
    border-bottom: none;
}

#vexPopupDialog {
    display: none;
}