.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
}
.logo-container img {
    margin-left: 5px;
    margin-right: 5px;
    width: 12em;
    height: auto;
}

.mainbody {
    margin-left:auto;
    margin-right:auto;
    text-align: center;
    width:50%;
}