How can I apply CSS on all buttons which are present in that page?

Question

I have created a CSS style class:

.btn { 
  color:#050; 
  font: bold 84% \'trebuchet ms\',helvetica,sans-serif; 
  background-color:#fed; 
  border:1px soli         


        

Answer 1

input[type=submit], input[type=button], button {
   ...
}