style.css

*, *::before, *::after {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

html {
    font-family: sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background-color: #333;
    color: #fff;
}

body {
    padding: 25px;
}

a {
    color: #0AF;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: .5em;
    margin-top: 1em;
}

p, img {
    margin-bottom: 1em;
    border-radius: .5rem;
}

img {
    width: 100%;
    max-width: 1200px;
}

ul, ol {
    padding-left: 1.5rem;
}

li {
    margin-bottom: .5em;
}

h1 {
    font-size: 6rem;
}

h2 {
    font-size: 4rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1rem;
}

h5 {
    font-size: .8rem;
}

h6 {
    font-size: .5rem;
}

.container {
    max-width: 1200px;
    margin: auto;
}

.block {
    margin-bottom: 5rem;
}

.live {
    color: #0F1;
}