How To Add Rounded Corner To Blogger Popular Post widget

popular post widget
popular post widget is most Famous and useful widget for the Bloggers ,as it shows most viewed posts of the blog .post which received maximum number of visitors will be on top position while the rest will be on decreasing order. 
instruction to customize popular post widget

Login to Blogger  > Click on drop down > Now select "Template"

Now you can see  EDIT HTML Button Click on it >  Now click Proceed button 

Now press Ctrl+F find this tag ]]></b:skin> 

Paste below code Before/above ]]></b:skin> tag.

.popular-posts ul li
{border:1px solid #1874CD;
margin-bottom:5px;
border-radius:10px;
padding-left:5px;

}

.popular-posts ul li:hover
{
text-decoration:none;
border:1px solid #BFBFBF;
}

Now  save the Template