.flashes {
    position: fixed;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
}

.sd_flash {
    max-width: 1000px;
    padding: 20px;
    margin: 10px auto;
    text-align: center;
    border: 2px dashed;
}

.sd_flash.info {
    background: #88f;
    border-color: #44f;
    color: #008;
}

.sd_flash.warning {
    background: #ff8;
    border-color: #ff4;
    color: #880;
}

.sd_flash.error {
    background: #f88;
    border-color: #f44;
    color: #800;
}