index.css

@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@300;500;600;700&display=swap');

:root {
    --outerPadding: 1em;
    --innerPadding: 1em;
    --borderRadius: 0.5em;
}

body {
    /* Background Image */
    background: url(images/background.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;

    /* Font be like */
    font-family: 'Fredoka', sans-serif;
}

/* Remove margin, padding, and font weights */
* {
    margin: 0;
    padding: 0;
    font-weight: normal;
}

.container {
    /* Background */
    backdrop-filter: blur(5px);
    background: rgb(0, 0, 0, 0.25);

    /* Text color */
    color: white;

    /* Flexboxify */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;

    /* Padding */
    padding: var(--innerPadding);

    /* Border Radius */
    border-radius: var(--borderRadius);
}

.tl {
    top: var(--outerPadding);
    left: var(--outerPadding);
    position: absolute;
}

.tr {
    top: var(--outerPadding);
    right: var(--outerPadding);
    position: absolute;
}

.bl {
    bottom: var(--outerPadding);
    left: var(--outerPadding);
    position: absolute;
}

.br {
    bottom: var(--outerPadding);
    right: var(--outerPadding);
    position: absolute;
}

.rules {
    margin-top: var(--innerPadding);
    font-weight: lighter;
}

.bold {
    font-weight: bold;
}

.process {
    /* Spacing */
    padding: 0.5em 1em;
    margin-top: 0.25em;
    margin-bottom: 0.25em;

    /* Background */
    background: rgb(0, 0, 0, 0.25);

    /* Border */
    border-radius: 0.5em;
}