SharePoint 2010/2013 hidden Speed drop-down menu list items

SharePoint 2010/2013 hides the Speed drop-down menu list item sometimes in order to prevent some users from editing list items. You need to hide the drop-down menu list item. , you just need to add a content editor control and write the CSS code to its HTML source. Before you change:
After the change:
CSS code:

<style type= "Text/css" >    . s4-ctx{            display:none;           } </style>

Suppose you use the SP2013, the classes here need to be changed.

<style type= "Text/css" >.ms-list-itemlink{    display:none;} </style>

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SharePoint 2010/2013 hidden Speed drop-down menu list items