Radio Button style : demo 6

                        .radio-list{
                            text-align: center;
                            padding: 0;
                            margin: 0;
                            list-style: none;
                        }
                        .radio-button{
                            margin: 0 5px;
                            display: inline-block;
                            position: relative;
                        }
                        .radio-button input[type=radio]{
                            margin: auto;
                            visibility: hidden;
                            position: absolute;
                            left: 0;
                            top: 0;
                        }
                        .radio-button label{
                            background: #999;
                            width: 30px;
                            height: 30px;
                            cursor: pointer;
                            border-radius: 50%;
                            position: relative;
                            z-index: 1;
                            transition: all .3s ease-in-out;
                        }
                        .radio-button label:before,
                        .radio-button label:after{
                            content: "";
                            background: #fff;
                            width: 15px;
                            height: 15px;
                            border-radius: 50%;
                            box-shadow: 0 3px 5px rgba(0, 0, 0, 0.3);
                            transform: translateX(-50%) translateY(-50%) scale(0);
                            position: absolute;
                            top: 50%;
                            left: 50%;
                            transition: all .4s;
                        }
                        .radio-button label:after{
                            background: #fff;
                            opacity: 0;
                            transform: translateX(-50%) translateY(-50%) scale(2);
                            z-index: -1;
                            transition: all .5s;
                        }
                        .radio-button label:hover,
                        .radio-button input[type=radio]:checked+label{
                            background-color: red;
                        }
                        .radio-button input[type=radio]:checked+label:before{
                            transform: translateX(-50%) translateY(-50%) scale(1);
                        }
                        .radio-button input[type=radio]:checked+label:after{
                            opacity: 1;
                            transform: translateX(-50%) translateY(-50%) scale(0.5);
                        }