div.error-container {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 1000;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    top: 0px;
    bottom: 0px;
}

div.error-container div {
    text-align: center;
}

div.error-container i {
    width: 350px;
    height: 350px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 500px) {
    div.error-container i {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 800px) {
    div.error-container i {
        width: 200px;
        height: 200px;
    }
}