refresh.sublime-snippet
<snippet>
<content><![CDATA[
<button style="position:absolute;z-index:999999;top:50px;left:100px;" onclick="window.location.reload()"></button>
]]></content>
<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
<tabTrigger>re</tabTrigger>
<!-- Optional: Set a scope to limit where the snippet will trigger -->
<!-- <scope>source.python</scope> -->
</snippet>