stylesheet.css

body {
            background-color: rgb(0, 0, 0);
        }

        .cont {

            text-align: center;
        }

        #img {
            height: 300px;
            margin: 150px 0px 29px 0px;
        }

        #buttons {
            margin: 2px 1px 0px 6px;

        }

        #on {
            font-weight: 700;
            width: 80px;
            height: 27px;
            border-radius: 20px;
            margin: 0px 35px 0px 0px;
            background-color: chartreuse;
            font-size: 15px;
                    cursor:pointer;
        }
        #on:hover{
            background-color: rgb(92, 179, 6);
            color: white;
        }
        #off:hover{
        
            background-color: rgb(180, 0, 0);
            color: white;
        }  


        #off {
            font-size: 15px;
            background-color: red;
            width: 80px;
            height: 27px;
            border-radius: 20px;
            margin: 0px 0px 0px 35px;
            font-weight: 700;
            cursor:pointer;
        }