html {
    height: 100%
}

body {
    margin: 0;
    min-height: 100%;
    background-color: #ffd600;
    background-size: 100% 100%;
}

.center {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.contain {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.stretch {
    display: block;
    width: 100%;
    height: 100%;
}

.cover {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bottom {
    position: absolute;
    bottom: 0;
    left: 50%;
    -ms-transform: translate(-50%, 0);
    transform: translate(-50%, 0);
}

.bottomLeft {
    position: absolute;
    bottom: 0;
    left: 0;
}

.bottomRight {
    position: absolute;
    bottom: 0;
    right: 0;
}