void init_css_node_children(css_node_t *node, int children_count) {
node->context = calloc((size_t)children_count, sizeof(css_node_t));
for (int i = 0; i < children_count; ++i) {
init_css_node(node->get_child(node->context, i));
init_test_css_node(node->get_child(node->context, i));
}
node->children_count = children_count;
}
css_node_t *new_css_node() {
css_node_t *node = (css_node_t *)calloc(1, sizeof(*node));
init_css_node(node);
return node;
}