How to remove focus of the button when button onclick event occur using css.I have used css outline:0 none but it not work.I have also used border:none but it also not working.What can i do please suggest me.
.btnfst {
    border-radius: 100px;
    height: 60px;
    width: 220px;
    background-color:   #1E90FF;
    font-size: 30px;
    color: white;
    border-style:hidden;
    overflow: hidden;
    border-image-repeat: stretch;
    background-image: url('images/btt.png');
     border: none;
     outline: 0 none;
    -moz-outline-style: none;    
}