plus-minus button on quantity input WooCommece.php

<?php
//templates\global\quantity-input.php
//remove qty class from input field
//add the markup below after input field
<div class="qty">
  <a class="plus" href="javascript:void(0);">
    <i class="fa fa-plus"></i>
  </a>
  <a class="minus" href="javascript:void(0);">
    <i class="fa fa-minus"></i>
  </a>
</div>
// css for the markup (circle style | plus - input - minus)
.woocommerce .quantity {
    position: relative;
    border: 1px solid #ddd;
    border-radius: 50px;
    padding: 0 40px;
    overflow: hidden;
    width: 110px;
}
.woocommerce .quantity input[type=number]::-webkit-inner-spin-button, 
.woocommerce .quantity input[type=number]::-webkit-outer-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
}
.woocommerce .quantity input {
    height: 40px;
    width: 30px;
    border: none;
    text-align: center;
    padding: 0;
}
.woocommerce .quantity .qty {
    height: 0px;
}
.woocommerce .quantity .qty a {
    position: absolute;
    top: 0;
    height: 40px;
    padding: 0;
    margin: 0;
    text-align: center;
    width: 40px;
}
.woocommerce .quantity .qty a i {
    font-size: 14px;
    line-height: 40px;
    display: block;
}
.woocommerce .quantity .qty a.plus {
    right: 0;
}
.woocommerce .quantity .qty a.minus {
    left: 0;
}
// css for the makrup (squre style | input - plus|minus)
.woocommerce .quantity {
    position: relative;
    border: 1px solid #ddd;
    padding: 0 40px;
    overflow: hidden;
    width: 80px;
}
.woocommerce .quantity input[type=number]::-webkit-inner-spin-button, 
.woocommerce .quantity input[type=number]::-webkit-outer-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
}
.woocommerce .quantity input {
    height: 40px;
    width: 60px;
    border: none;
    text-align: center;
    padding: 0;
    margin-left: -40px !important;
}
.woocommerce .quantity .qty {
    height: 0px;
}
.woocommerce .quantity .qty a {
    position: absolute;
    top: 0;
    height: 20px;
    padding: 0;
    margin: 0;
    text-align: center;
    width: 30px;
    line-height: 20px;
}
.woocommerce .quantity .qty a i {
    font-size: 14px;
    line-height: 20px;
    display: block;
}
.woocommerce .quantity .qty a.plus {
    right: 0;
    top: 2px;
}
.woocommerce .quantity .qty a.minus {right: 0;top: auto;bottom: 0px;}
// js for quantity increase / decrease
$( 'body' ).on( 'click', '.quantity .plus', function( e ) {
  var $input = $( this ).parent().parent().find( 'input' );
  $input.val( parseInt( $input.val() ) + 1 );
  $input.trigger( 'change' );
});
$( 'body' ).on( 'click', '.quantity .minus', function( e ) {
  var $input = $( this ).parent().parent().find( 'input' );
  var value = parseInt( $input.val() ) - 1;
  if ( value < 0 ) value = 0;
  $input.val( value );
  $input.trigger( 'change' );
});