problemwithmysite

I have original code in back up, I will later create child theme, why nobody want help me, is this wordpress support or hateport please help me

I will change but please can you explain this
why my left sidebar is on middle page https://balkan-tourism.com/

Look now, my third sidebar is on left side but I can’t change fon’t I want change size and other, I put this code in style.css what’s wrong, help please

@media screen and (may-width: 999px) {
	.template-front-page.two-sidebars .widget-area .front-widgets,
	.template-front-page .widget-area .widget:nth-child(even),
	.template-front-page.two-sidebars .widget-area .front-widgets + .front-widgets {
		float: right !important;
		width: 30.3% !important;
		margin-left: 5.5% !important;
		margin-right: 5.5% !important;
    }
	.template-front-page .widget-area .widget:nth-child(odd) {
		clear: none !important;
	}
	.template-front-page .widget-area .widget:nth-child(3n+3) {
		clear: left;
	}
}

https://balkan-tourism.com/ I want my calendar left, what is wrong here? I’m added code in function.php and slider.php

function.php

function twentythirteen_widgets_init() {
	register_sidebar( array(
		'name'          => __( 'Main Widget Area', 'twentythirteen' ),
		'id'            => 'sidebar-1',
		'description'   => __( 'Appears in the footer section of the site.', 'twentythirteen' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>',
	) );

	register_sidebar( array(
		'name'          => __( 'Secondary Widget Area', 'twentythirteen' ),
		'id'            => 'sidebar-2',
		'description'   => __( 'Appears on right sidebar.', 'twentythirteen' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>',
	) );

        register_sidebar( array(
		'name'          => __( 'Third Widget Area', 'twentythirteen' ),
		'id'            => 'sidebar-3',
		'description'   => __( 'Appears on left sidebar.', 'twentythirteen' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget'  => '</aside>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>',
	) );
}

slider.php

<?php
/**
 * The sidebar containing the secondary widget area
 *
 * Displays on posts and pages.
 *
 * If no active widgets are in this sidebar, hide it completely.
 *
 * @package WordPress
 * @subpackage Twenty_Thirteen
 * @since Twenty Thirteen 1.0
 */

if ( is_active_sidebar( 'sidebar-2' ) ) : ?>
	<div id="tertiary" class="sidebar-container" role="complementary">
		<div class="sidebar-inner">
			<div class="widget-area">
				<?php dynamic_sidebar( 'sidebar-2' ); ?>

			</div><!-- .widget-area -->
		</div><!-- .sidebar-inner -->
	</div><!-- #tertiary -->

<?php endif; ?>

<?php
if ( is_active_sidebar( 'sidebar-3' ) ) : ?>
	<div id="tertiary" class="sidebar-container" role="supplementary">
		<div class="sidebar-inner">
			<div class="widget-area">
				<?php dynamic_sidebar( 'sidebar-3' ); ?>
			</div><!-- .widget-area -->
		</div><!-- .sidebar-inner -->
	</div><!-- #tertiary -->
<?php endif; ?>

<?php
if ( is_active_sidebar( 'sidebar-3' ) ) : ?>
	<div id="tertiary" class="sidebar-container" role="supplementary">
		<div class="sidebar-inner">
			<div class="widget-area">
				<?php dynamic_sidebar( 'sidebar-3' ); ?>
			</div><!-- .widget-area -->
		</div><!-- .sidebar-inner -->
	</div><!-- #tertiary -->
<?php endif; ?>

Sorry for bump, I’m not read rules.

I don’t know install new widget, do you have video tutorial or can you write me step by step, I need just one more new widget (third widget)
or example