Did you link that font to a font-family (@fontface...) and the assign the Family to the span needed to enclose the character)?
Code:
@font-face {
font-family: "noto";
font-weight: normal;
font-style: normal;
src: url(../fonts/<filenamehere>.ttf);
}
Code:
1-<span class="usenoto">🧐</span>