li diversas duvidas "iguais" aqui no fórum mas ainda assim não consigo fazer o tal ícone aparecer, segue o código abaixo
<!DOCTYPE html>
<html lang="pt-br">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>HZC | Home</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&display=swap">
<link rel="stylesheet" href="flex-e-grid-main/assets/css/reset.css">
<link rel="stylesheet" href="flex-e-grid-main/assets/css/estilos.css">
</head>
<body>
<header class="cabecalho">
<button class="cabecalho__menu"><i></i></button>
<img class="cabecalho__logo" src="flex-e-grid-main/assets/img/logo.svg" alt="Logotipo da HZC">
<button class="cabecalho__notificacao"> <i></i> </button>
</header>
</body>
</html>
@font-face {
font-family:'icones';
src: url(icones.ttf);
}
body{
background-color:#1D232A;
font-family: 'Open sans','icones', sans-serif;
color: #FFFFFF;
}
.cabecalho{
display: flex;
justify-content: space-between;
align-items:center ;
background-color:#15191C;
padding: 8px 16px;
box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.16);
}
.cabecalho__menu i::before{
content: "\e904";
}
.cabecalho__noficacao i::before{
content: "\e906";
}