How to Highlight admin picture Author Comments in Blogger

Step 1: Go to Blogger’s Dashboard > Design > Edit HTML tab and backup your template in case anything goes wrong.
Step 2: Check “Expand widget template”.
Step 3: Press “Ctrl+F” to open the search bar within your browser and find:

<b:loop values='data:post.comments' var='comment'>

<dt expr:class='&quot;comment-author &quot; + data:comment.authorClass' expr:id='data:comment.anchorName'>

<b:if cond='data:comment.favicon'>

<img expr:src='data:comment.favicon' height='16px' style='margin-bottom:-2px;' width='16px'/>

</b:if>

<a expr:name='data:comment.anchorName'/>

<b:if cond='data:blog.enabledCommentProfileImages'>

<data:comment.authorAvatarImage/>

</b:if>

<b:if cond='data:comment.authorUrl'>

<a expr:href='data:comment.authorUrl' rel='nofollow'><data:comment.author/></a>

<b:else/>

<data:comment.author/>

</b:if>

<data:commentPostedByMsg/>

</dt>

<dd class='comment-body' expr:id='data:widget.instanceId + data:comment.cmtBodyIdPostfix'>

<b:if cond='data:comment.isDeleted'>

<span class='deleted-comment'><data:comment.body/></span>

<b:else/>

<p>

<data:comment.body/>

</p>

</b:if>

</dd>

<dd class='comment-footer'>

<span class='comment-timestamp'>

<a expr:href='data:comment.url' title='comment permalink'>

<data:comment.timestamp/>

</a>

<b:include data='comment' name='commentDeleteIcon'/>

</span>

</dd>

</b:loop>

replace that code with this code

<b:loop values='data:post.comments' var='comment'>

<div expr:class='&quot;author-comment &quot; + data:comment.authorClass'>

<dt class='comment-author' expr:id='data:comment.anchorName'>

<b:if cond='data:comment.favicon'>

<img expr:src='data:comment.favicon' height='16px' style='margin-bottom:-2px;' width='16px'/>

</b:if>

<a expr:name='data:comment.anchorName'/>

<b:if cond='data:blog.enabledCommentProfileImages'>

<data:comment.authorAvatarImage/>

</b:if>

<b:if cond='data:comment.authorUrl'>

<a expr:href='data:comment.authorUrl' rel='nofollow'><data:comment.author/></a>

<b:else/>

<data:comment.author/>

</b:if>

<data:commentPostedByMsg/>

</dt>

<dd class='comment-body' expr:id='data:widget.instanceId + data:comment.cmtBodyIdPostfix'>

<b:if cond='data:comment.isDeleted'>

<span class='deleted-comment'><data:comment.body/></span>

<b:else/>

<p>

<data:comment.body/>

</p>

</b:if>

</dd>

<dd class='comment-footer'>

<span class='comment-timestamp'>

<a expr:href='data:comment.url' title='comment permalink'>

<data:comment.timestamp/>

</a>

<b:include data='comment' name='commentDeleteIcon'/>

</span>

</dd>

</div>

</b:loop>

Step 4: Find ]]> and before it add:

.comment-footer{

margin-bottom:0 !important;

}

.author-comment{

background-color:#F0FFF0;

padding:5px;

margin-bottom:1.5em;

border:1px solid #ccc;

border-radius:10px;

}

.author-comment.blog-author {

background: #FFEBCD url(https://lh3.googleusercontent.com/_-BRP4LFLyWc/TZX3b7r2AyI/AAAAAAAAATY/8Am8ri02OjE/s800/admin.png) no-repeat right top;

}

Step 5: Save your template. You will now find that the full section of the author or admin comments in Blogger is colored and standout from rest of the comments.
Now it’s time for some customizations. Change the color hex values, for example: #F0FFF0 or #FFEBCD or #CCC, with the color you want to highlight author comments and you can also change the background image for it, marked in bold.