How do I change the size of the icons from "Contacting Username"?

this is my code btw :3

<style>.contact .inner a img {

    font-size: 0;

}

.contact .inner a img:before {

    font-size: 200px;

    display: block

}

.contact .inner .f-row:nth-child(1) .f-col:nth-child(1) a:before {

/* Add to Friends */

content: url(https://emoji.discadia.com/emojis/51eb1596-9e67-4b3f-9a23-ff3fdc30c0ba.gif) 

}

.contact .inner .f-row:nth-child(1) .f-col:nth-child(2) a:before {

/* Add to Favorites */

content: url("https://emoji.discadia.com/emojis/481b03d4-f217-4176-b8fc-de4a0700f6a8.GIF")

}

.contact .inner .f-row:nth-child(2) .f-col:nth-child(1) a:before {

/* Send Message */

content: url(https://emoji.discadia.com/emojis/d6bdbbec-d8a6-4720-b025-ca8b15bd09a3.GIF)

}

.contact .inner .f-row:nth-child(2) .f-col:nth-child(2) a:before {

/* Forward to Friend */

content: url(https://emoji.discadia.com/emojis/1d2d41b9-06c0-4200-9abf-64a201e7b4ba.GIF)

}

.contact .inner .f-row:nth-child(3) .f-col:nth-child(1) a:before {

/* Instant Message */

content: url(https://emoji.discadia.com/emojis/c2549b5d-93de-41bf-9054-25382bac5b6b.GIF)

}

.contact .inner .f-row:nth-child(3) .f-col:nth-child(2) a:before {

/* Block User */

content: url(https://emoji.discadia.com/emojis/61f3e1a0-9eeb-4cea-a4ab-12ecf1a0f603.GIF)

}

.contact .inner .f-row:nth-child(4) .f-col:nth-child(1) a:before {

/* Add to Group */

content: url(https://emoji.discadia.com/emojis/c71647fb-c0a1-40ad-8c44-91a2e0b20eb3.GIF)

}

.contact .inner .f-row:nth-child(4) .f-col:nth-child(2) a:before {

/* Report Profile */

content: url(https://emoji.discadia.com/emojis/e205cecf-c3d3-4563-a0c3-f4e91c15e500.GIF)

}

</style>