.radio_OK{
    padding: 4px;
}

.radio_OK input[type=radio] {
    display:none; 
    margin:10px;
}

.radio_OK input[type=radio] + label {
    display:inline-block;
    margin:-2px;
    padding: 4px 12px;
    background-color: #f4f4f0;
    border-color: #ddd;
}

.radio_OK .r_ok1{ 
	display:inline-block;
}

.radio_OK .r_ok2{ 
	display:inline-block;
}

.radio_OK .r_ok3{ 
	display:inline-block;
}

.radio_OK .r_ok1 input[type=radio]:checked + label { 
    background-image: none;
    background-color:#00ff00;
	}
.radio_OK .r_ok2 input[type=radio]:checked + label { 
    background-image: none;
    background-color:#ffff00;
	}
.radio_OK .r_ok3 input[type=radio]:checked + label { 
    background-image: none;
    background-color:#ff0000;
	}