Checkbox style : demo 3

                        .checkbox{
                            background: #273c75;
                            width: 60px;
                            height: 26px;
                            margin: 0 auto;
                            border-radius: 5px;
                            position: relative;
                        }
                        .checkbox:before,
                        .checkbox:after{
                            content: 'ON';
                            color: #fff;
                            font-size: 12px;
                            font-weight: bold;
                            letter-spacing: -0.5px;
                            transform: translateY(-50%);
                            position: absolute;
                            top: 50%;
                            left: 8px;
                        }
                        .checkbox:after{
                            content: 'OFF';
                            color: rgba(255,255,255,0.6);
                            text-shadow: 1px 1px 0px rgba(255, 255, 255, 0.15);
                            left: auto;
                            right: 5px;
                        }   
                        .checkbox input[type=checkbox]{
                            margin: 0;
                            visibility: hidden;
                            left: 7px;
                            top: 7px;
                        }
                        .checkbox label{
                            background: #fff;
                            width: 25px;
                            height: 20px;
                            border-radius: 5px;
                            cursor: pointer;
                            position: absolute;
                            top: 3px;
                            left: 3px;
                            z-index: 1;
                            transition: all 0.4s ease;
                        }
                        .checkbox input[type=checkbox]:checked+label{ left: 32px; }
                        @media only screen and (max-width:767px){
                            .checkbox{ margin: 0 0 20px; }
                        }