html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

.container {
    height: 100%;
    width: 100%;
    background-color: #0B161E;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI';
    text-align: center;
}

.color-foreground {
    color: #474849 !important;
}

.text-shadow {
    text-shadow: 1px 1px 2px;
}

.rainbow {
    -webkit-animation:rainbow 16s infinite;
    -ms-animation:rainbow 16s infinite;
    -o-animation:rainbow 16s infinite;
    animation:rainbow 16s infinite;
}

@-webkit-keyframes rainbow {
0% {color: #ff0000;}
10% {color: #ff8000;}
20% {color: #ffff00;}
30% {color: #80ff00;}
40% {color: #00ff00;}
50% {color: #00ff80;}
60% {color: #00ffff;}
70% {color: #0080ff;}
80% {color: #0000ff;}
90% {color: #8000ff;}
100% {color: #ff0080;}
}
@-ms-keyframes rainbow {
0% {color: #ff0000;}
10% {color: #ff8000;}
20% {color: #ffff00;}
30% {color: #80ff00;}
40% {color: #00ff00;}
50% {color: #00ff80;}
60% {color: #00ffff;}
70% {color: #0080ff;}
80% {color: #0000ff;}
90% {color: #8000ff;}
100% {color: #ff0080;}
}
@-o-keyframes rainbow {
0% {color: #ff0000;}
10% {color: #ff8000;}
20% {color: #ffff00;}
30% {color: #80ff00;}
40% {color: #00ff00;}
50% {color: #00ff80;}
60% {color: #00ffff;}
70% {color: #0080ff;}
80% {color: #0000ff;}
90% {color: #8000ff;}
100% {color: #ff0080;}
}
@keyframes rainbow {
0% {color: #ff0000;}
10% {color: #ff8000;}
20% {color: #ffff00;}
30% {color: #80ff00;}
40% {color: #00ff00;}
50% {color: #00ff80;}
60% {color: #00ffff;}
70% {color: #0080ff;}
80% {color: #0000ff;}
90% {color: #8000ff;}
100% {color: #ff0080;}
}