Modifying Child theme CSS

/*
Theme Name: Spacious Child Theme
Theme URI: http://themegrill.com/themes/spacious/
Description: Spacious Child Theme
Author: ThemeGrill
Author URI: http://themegrill.com
Template: spacious
Version: 1.0
*/

@import url("../spacious/style.css");

/* =Theme customization starts here
------------------------------------------------------- */
#site-title a {
color: #0000FF;
font-size: 42px;
}