#logoContainer {
    margin: 36px auto 50px;
    position: relative;
    width: 500px;
    height: 500px;
    padding: 10%;
    background-color: #263238;
    border-radius: 50%;
}

#logoContainer > img {
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%
}

.g-signin2 > div  {
    margin: auto;
}

body > div {
    margin: auto;
}

html, body {
    height: 100%;
}

@media (max-width: 992px) {

    #logoContainer {
        position: relative;
        width: 250px;
        height: 250px;
        margin: auto auto 50px;
        margin-top: 36px;
    }

}