qb-core-qbcore-fivem/html/css/main.css

body {
    background-color: transparent !important;
}

.template, .notification {
    display: none;
}

.notif-container {
    width: 20vw;
    position: absolute;
    top: 4vh;
    right: 12vw;
    display: flex;
    flex-flow: row;
    flex-wrap: wrap;
}

.notification {
    position: relative;
    padding: 1vh;
    width: fit-content;
    border-radius: .4vh;
    margin: 5px;
    font: caption;
    font-size: 1.2vh;
    font-weight: bold;
    float: left;
}

.success {
    background: #27ae60;
    color: #fff;
}

.primary {
    background-color: #2980b9;
    color: #ffffff;
}

.error {
    background: #c0392b;
    color: #fff;
}