food-inventory/assets/css/index.css

body {
    background: rgb(2, 0, 36);
    background: -moz-linear-gradient(140deg, rgba(2, 0, 36, 1) 0%, rgba(9, 9, 121, 1) 30%, rgba(0, 111, 131, 1) 100%);
    background: -webkit-linear-gradient(140deg, rgba(2, 0, 36, 1) 0%, rgba(9, 9, 121, 1) 30%, rgba(0, 111, 131, 1) 100%);
    background: linear-gradient(140deg, rgba(2, 0, 36, 1) 0%, rgba(9, 9, 121, 1) 30%, rgba(0, 111, 131, 1) 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#020024", endColorstr="#006f83", GradientType=1);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

#indexTitle {
    position: absolute;
    top: 50%;
    left: 40%;
    transform: translateX(-50%) translateY(-50%);
    z-index: auto;
}

#login {
    position: fixed;
    display: block;
    top: 35px;
    right: 35px;
    z-index: auto;
}

#loginButton {
    text-decoration: none;
    letter-spacing: 2px;
    padding: 12px;
    border: solid white;
    border-radius: 15px;
    transition: all 500ms;
}

#loginButton:hover {
    transition: all 500ms;
    color: #546a7b;
    background-color: #fdfdff;
    box-shadow: 0 0 100px white;
}

/* Very small devices (portrait phone, 575 and down) */

@media (max-width: 575px) {
    #title {
        font-size: 3em;
    }
    #subtitle {
        font-size: 1em;
    }
}

/* Small devices (landscape phones, 576px and up)*/

@media (min-width: 576px) {
    #title {
        font-size: 5em;
    }
    #subtitle {
        font-size: 1.5em;
    }
}

/* Large devices (desktops, 992px and up)*/

@media (min-width: 992px) {
    #title {
        font-size: 7em;
    }
    #subtitle {
        font-size: 2.5em;
    }
}