reset buttons for fixes in all browsers

gistfile1.css

// reset all buttons
input[type="submit"],
button { 
    border: 0; 
    padding: 0;
    cursor: pointer;
    outline: none; /* for good measure */
    overflow: visible; /* removes extra side padding in IE */
}

/* removing dotted line on buttons and clickable input elements for Firefox */
input[type="submit"]::-moz-focus-inner, 
input[type="button"]::-moz-focus-inner, 
button::-moz-focus-inner { 
  border : 0;
  padding: 0;
}