Increase the Column width of the web Part in a SharePoint page

Problem: Increase the Column width of the web Part in a SharePoint page

Solution:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>

<script type="text/javascript">

$(document).ready(function() {

   $("div.ms-vh-div:contains('URL')").css("width", "400px")

});

</script>

reference: https://channel9.msdn.com/Blogs/MVP-Office-Dev/Change-column-width-in-SharePoint-List