body {
    margin: 0;
    font-family: Helvetica, san-serif;
    background: #0b0b0b;
    color: #e6e6e6;
    display: flex;
    justify-content: center;
}

.container {
    width:420px;
    padding: 12px;
}

p {
    text-align: justify;
    hyphens: auto;
}

<!-- Header formats - 1 to 4 left aligned-->
h1 {
    font-size: 24px;
    text-align: left;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
h2 {
    font-size: 20px;
    text-align: left;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
h3 {
    font-size: 18px;
    text-align: left;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
h4 {
    font-size: 16px;
    text-align: left;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
h5 {
    font-size: 24px;
    text-align: center;
    margin-bottom: 1px;
    letter-spacing: 1px;
}
h6 {
    font-size: 14px;
    text-align: center;
    margin-top: 1px;
    margin-bottom: 1px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 12px;
    color: #999;
    margin: 20px 0 8px;
    text-transform: uppercase;
}

.card {
    background: #1a1a1a;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.title {
    font-size: 14px;
    margin-bottom: 6px;
}

audio, video {
    width: 100%;
}

img {
    width: 100%;
    border-radius: 8px;
}

.download {
    font-size: 11px;
    margin-top: 6px;
}

a {
    color: #66aaff;
    text-decoration: none;
}

<!-- Text in a box with a shadow -->

.shadow-box {
  
  width: 300px;
  padding: 20px;
  border: 1px solid #fff;
  background-color: gray;
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.3);
}
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