.vault-logo {
    background-image: url(img/logo-square-alt.png);
    background-repeat: no-repeat;
    background-size: contain;
}

.vault-bgd-left {
    background-image: url(img/vault-left-bg.png);
    background-size: contain;
    background-position: left bottom;
    height: 100%;
    width: 40vw;
    position: absolute;
    background-repeat: no-repeat;
    left: 0;
    bottom: 0;
    z-index: 1;
 }

.vault-bgd-right {
    background-image: url(img/vault-right-bg.png);
    background-size: contain;
    background-position: right bottom;
    height: 100%;
    width: 30vw;
    position: absolute;
    background-repeat: no-repeat;
    left: 0;
    bottom: 0;
    z-index: 1;
 }