Hello Dear adhie,
Please follow this given below steps for remove your admin, comment and date from your every blog page and posts.
1. Go on your theme package open it –> go on index.php visible in your theme package open this file –> and removes line of code from 25 to 33.
Like this given code.
<div class="blog-post-detail">
<div class="col-md-9">
<a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) );?>"><i class="fa fa-user"></i> <?php the_author(); ?></a>
??<a href="#"><i class="fa fa-tag"></i><?php the_tags('', ', '); ?></a>
?<a href="#"><i class="fa fa-comment"></i><?php comments_popup_link( '0', '1', '%', '', '-'); ?></</a>
</div>
<div class="blog-post-date"><span class="date"><?php echo get_the_date('j'); ?><small><?php echo get_the_date('M'); ?></small></span>
</div>
</div>
2. Go on your theme package open it –> go on content.php visible in your theme package open this file –> and removes line of code from 14 to 22.
Like this given code.
<div class="blog-post-detail">
<div class="col-md-9">
<a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) );?>"><i class="fa fa-user"></i> <?php the_author(); ?></a>
??<a href="#"><i class="fa fa-tag"></i><?php the_tags('', ', '); ?></a>
?<a href="#"><i class="fa fa-comment"></i><?php comments_popup_link( '0', '1', '%', '', '-'); ?></</a>
</div>
<div class="blog-post-date"><span class="date"><?php echo get_the_date('j'); ?><small><?php echo get_the_date('M'); ?></small></span>
</div>
</div>
Let me know further assistance.
[ Signature moderated ]