I had one contact form wordpress plugin which loads with ajax so i want to remove that loader type ajax what should be done?
Inspect the element which you want to remove by going to browser.
If chrome you can directly press ctrl+shift+i and windows will open.
Locate that particular loader you want to remove and you will find it wrapped in div or id.
Find that and put it in css code with this command as shown in example.
.ajaxloader {display:none;}
#ajaxloader {display:none;}
Hope this will works.