html,
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    font-size: 14px;
    line-height: 1.5;
    color: #24292f;
    background-color: #ffffff;
}

img {
    height: 540px;
}

li+li {
    margin-top: 0.25em;
}

.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 4px;
}

.mb-4 {
    margin-bottom: 4px;
}