main svg {
    position: relative;
    left: 50%;
    transform: translate(-50%);
}

footer {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #D8D8D8;
    text-align: center;
    height: 50px;
    font-size: 25px;
    padding-top: 5px;
}

body {
    height: 100%;
    width: 100%;
    background-color: black;
    overflow: hidden;
}

.slidecontainer {
    width: 100%;
    /* Width of the outside container */
}

.container {
    margin-top: auto;
    position: relative;
    top: 40%;
    transform: translateY(-50%);
    transform: translateX(5%);
    width: 90%;
}

.power {
    width: 100%;
    padding-left: 50%;
}

.button {
    background-color: #421e57;
    /* Green */
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    transform: translateX(-50%);
}


/* The slider itself */

.slider {
    -webkit-appearance: none;
    /* Override default CSS styles */
    appearance: none;
    width: 100%;
    /* Full-width */
    height: 25px;
    /* Specified height */
    background: #646464;
    /* Grey background */
    outline: none;
    /* Remove outline */
    opacity: 0.7;
    /* Set transparency (for mouse-over effects on hover) */
    -webkit-transition: .2s;
    /* 0.2 seconds transition on hover */
    transition: opacity .2s;
}


/* Mouse-over effects */

.slider:hover {
    opacity: 1;
    /* Fully shown on mouse-over */
}


/* The slider handle (use -webkit- (Chrome, Opera, Safari, Edge) and -moz- (Firefox) to override default look) */

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    /* Override default look */
    appearance: none;
    width: 25px;
    /* Set a specific slider handle width */
    height: 25px;
    /* Slider handle height */
    background: #7f30e6;
    /* Green background */
    cursor: pointer;
    /* Cursor on hover */
}

.slider::-moz-range-thumb {
    width: 25px;
    /* Set a specific slider handle width */
    height: 25px;
    /* Slider handle height */
    background: #7f30e6;
    /* Green background */
    cursor: pointer;
    /* Cursor on hover */
}