html{
    display: flex;
    height: 100vh;
    width: 100vw;
    background: #ee9ca7; /* fallback for old browsers */
    background: linear-gradient(to right, #ee9ca7, #ffdde1); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */    
}