Under the hood
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.content-1 {
font-family: "Helvetica Neue", Arial, sans-serif;
font-size: 50px;
font-style: normal;
font-weight: bold;
letter-spacing: 0px;
line-height: 55px;
text-transform: none;
color: #111517;
}
Helvetica Neue is available from Adobe Fonts.