Use escaped unicode for css pseudo-element content value

css unicode icons

//  usage: <span aria-hidden="true" class="u-icon--chevron--left"></span> 

// →
.u-icon--arrow--right:before {
	content: '\279E';
}

// ❯
.u-icon--chevron--right:before {
	content: '\276F';
}

// ❮
.u-icon--chevron--left:before {
	content: '\276E';
}

// ✔
.u-icon--chechmark:before {
	content: '\2714';
}

// ✖
.u-icon--x:before {
	content: '\2716';
}