If in my HTML file, Font Awesome icons are showing up as blank squares in all browsers, even though I've linked the stylesheet correctly and I've tried to install the package using npm, but it throws a npm ERR! code E401. I've also checked the browser developer console for error messages, but there are no errors being displayed.
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<title>EVERYTHING CHEMISTRY</title>
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<h3 id="Website name">EVERYTHING CHEMISTRY</h3>
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<h1 id="name">Periodic</h1>
<h1 id="subname">Table</h1>
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<div class="Subheading">
<h2 id="Subheading 1">118 Elements</h2>
<h2 id="Subheading 2">7 Periods</h2>
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<p id="Translations">{Eng: Periodic Table; Arabic: الجدول الدوري; Afrikaans: Periodieke tabel; Mandarin: 周期表
(zhōuqī biǎo); Urdu: پیرودیک ٹیبل.}</p>
<p id="Definition">The periodic table is a tabular arrangement of the chemical elements, organized on the basis
of their atomic number, electron configurations, and chemical properties. Elements are presented in rows
(called periods) and columns (called groups or families) according to their increasing atomic number. The
elements in a group have similar chemical and physical properties, and those in a period show a progression
of properties as the atomic number increases. The table provides a useful summary of the properties of the
elements and their chemical reactivity. It is widely used in chemistry and other sciences to predict the
properties and behavior of elements and their compounds.</p>
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