Create "Read More..." on blogspot just insert HTML code for template.
Select "Design" click "Edit HTML" then tic/checkmark "Expand Template Widget".
See image:
Insert code:
<style>
<b:if cond='data:blog.pageType == "item"'>
span.fullpost {display:inline;}
<b:else/>
span.fullpost {display:none;}
</b:if>
</style>
Above/before code:
</head>
See image:
Insert code:
<b:if cond='data:blog.pageType != "item"'>
<a expr:href='data:post.url'> Read More..</a>
</b:if>
Below/after code:
<data:post.body/>
or
<p><data:post.body/></p>
See image:
click "SAVE TEMPLATE".Finish.
How to Posting
Insert posting with code:
<span class="fullpost">
End posting with code:
</span>
Posting above/before code <span class="fullpost"> appear on homepage (HOME).All/full posting appear when "Read More.." on click.
Additional note:
Select Setting >> click "Format" then fill Template Entry with code:
<span class="fullpost">
</span>
Automatically each New Posting always appear code:
<span class="fullpost">
</span>