Create a group of checkboxes and allow only one selection. Here is the sample code for of creating checkbox using simple HTML and JavaScript.
HTML code
<!DOCTYPE html> <html> <head> <title>Page Title</title> <script> var checkboxChecked; document.addEventListener('input',(e)=> { if(e.target.getAttribute('name')=="termsCondition") { if(checkboxChecked) checkboxChecked.checked=false; } e.target.checked=true; checkboxChecked=e.target; }) </script> </head> <body> <p>Select only one checkbox from a group of checkboxes.</p> <input type="checkbox" name="termsCondition" value="1" /> 1 <input type="checkbox" name="termsCondition" value="2" /> 2 <input type="checkbox" name="termsCondition" value="3" /> 3 <input type="checkbox" name="termsCondition" value="4" /> 4 </body> </html>