Please complete the following steps:
1) Go to the plugin settings page and open "Custom Code" tab;
2) Find "bws-custom-code.css" field and insert the following code:
#cntctfrm_contact_form input[type="submit"] {background: url("image1.png") no-repeat scroll center center #fff;}
Where "image1.png" is a path to your own custom image.
3) Mark "Activate" checkbox and save changes.
It is also possible to customize Contact Form Submit button. For that, upgrade to Contact Form Pro version.
Please complete the following steps:
1) Go to the plugin settings page and open "Appearance" tab;
2) Find and enable "Style options" checkbox.
3) Find "Submit button" section and make necessary changes in the fields next to it.
4) Save changes.
This article related to Contact Form by BestWebSoft plugin
Additional resources: Contact Form - User Guide
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