.card-wide.mdl-card {
    width: 512px;
    margin: 25px auto;
}

.mdl-textfield {
    width: 100%;
}

.errors-block {
    height: auto;
    width: 512px;
    margin: 25px auto;
    background-color: rgba(255, 0, 0, 0.12);
    border: 1px solid red;
}

.errors-block div {
    color: red;
    text-align: center;
}