body {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    padding: 0;
    -webkit-app-region: drag;
    overflow: hidden;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

#container {
    background: blue;
    display: -webkit-flex;
    background: yellow;
    -webkit-flex-direction: column;
    text-align: center;
}



splash {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    border-radius: 0vh;
    border: none;
    outline: none;
    cursor: pointer;
    background: url(images/splash.jpg);
    background-size: 100vw 100vh;
    background-color: black;
    opacity: 1.0;
    z-index: 1001;
    -webkit-app-region: no-drag;
}


#main {
    position: relative;
    background: black;
    width: 100%;
    height: 100%;
    text-align: center;
}

.invisible {
    -webkit-transition: 0s opacity;
    opacity: 0;
}


button {
    position: absolute;
    top: 88vh;
    left: 15vw;
    width: 8vh;
    height: 8vh;
    border-radius: 0vh;
    border: none;
    outline: none;
    cursor: pointer;
    background: url(images/button.png);
    background-size: 8vh 8vh;
    opacity: 0.8;
    z-index: 1000;
    -webkit-app-region: no-drag;
}

button:hover {
    opacity: 1;
}

button:active {
    opacity: 0.5;
}

button1 {
    position: absolute;
    top: 88vh;
    left: 46vw;
    width: 8vh;
    height: 8vh;
    border-radius: 0vh;
    border: none;
    outline: none;
    cursor: pointer;
    background: url(images/button.png);
    background-size: 8vh 8vh;
    opacity: 0.8;
    z-index: 1000;
    -webkit-app-region: no-drag;
}

button1:hover {
    opacity: 1;
}

button1:active {
    opacity: 0.5;
}

button2 {
    position: absolute;
    top: 88vh;
    left: 77vw;
    width: 8vh;
    height: 8vh;
    border-radius: 0vh;
    border: none;
    outline: none;
    cursor: pointer;
    background: url(images/button.png);
    background-size: 8vh 8vh;
    opacity: 0.8;
    z-index: 1000;
    -webkit-app-region: no-drag;
}

button2:hover {
    //  background-size: 8vh 8vh;
    opacity: 1;
}

button2:active {
    //  background-size: 8vh 8vh;
    opacity: 0.5;
}
