I'm new to CSS and i'm not sure how to add a custom font. I've tried searching everywhere on Stackflow and cannot find an answer.
@font-face{
    font-family: "Athelas";
    src: url('Athelas.ttf') format("truetype");
    font-style: normal;
    font-weight: normal;
}
body{
    background: rgb(2,0,36);
    background: linear-gradient(137deg, rgba(2,0,36,1) 0%, rgba(9,9,121,1) 35%, rgba(0,212,255,1) 100%);
    background-attachment: fixed;
}
.center{
    text-align: center;
    font-size: 90px;
    font-family: "Athelas";
}
Note: I'm Used To Developing In LUA Via Roblox And I'm New To Stackflow