i am not able to see icons in my website. Why?

i am using this code as below

@font-face {
    font-family: 'icomoon';
    src:url('/../fonts/icomoon.eot') format('embedded-opentype'),
        url('/../fonts/icomoon.ttf') format('truetype'),
        url('/../fonts/icomoon.woff') format('woff'),
        url('/../fonts/icomoon.svg') format('svg');
    font-weight: normal;
    font-style: normal;
}

Suggest me