Radio Button style : demo 9

                        .radio-list{
                            width: 30px;
                            padding: 0;
                            margin: 0 auto;
                            list-style: none;
                        }
                        .radio-button{
                            position: relative;
                            margin: 10px 0;
                        }
                        .radio-button input[type=radio]{
                            margin: auto;
                            visibility: hidden;
                            position: absolute;
                            left: 0;
                            top: 0;
                        }
                        .radio-button label{
                            background: #339a9a;
                            height: 30px;
                            margin: 0;
                            cursor: pointer;
                            border-radius: 50%;
                            display: block;
                            overflow: hidden;
                            position: relative;
                            transition: 0.3s ease-in-out;
                        }
                        .radio-button label:before{
                            content: "";
                            background: #fff;
                            width: 60%;
                            height: 60%;
                            border-radius: 50%;
                            transform: translateX(-200%) translateY(-50%);
                            position: absolute;
                            top: 50%;
                            left: 50%;
                        }
                        .radio-button input[type=radio]:checked+label:before{
                            transform: translateX(-50%) translateY(-50%);
                            animation: animate .3s ease-in-out forwards;
                        }
                        @keyframes animate{
                            30%, 70%{ transform: translateX(-50%) translateY(-50%) scale(0.5); }
                        }