:before{
position: relative;
/* top: 3pt; Uncomment this to lower the icons as requested in comments*/
content: "";
display: inline-block;
/* By using an em scale, the arrows will size with the font */
width: 0.4em;
height: 0.4em;
border-right: 0.2em solid black;
border-top: 0.2em solid black;
transform: rotate(45deg);
margin-right: 0.5em;
}