style.css

* {
    box-sizing: border-box;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
}

body {
    margin: 5px;
    padding: 0px;
    font-family: Arial, sans-serif;
}

a {
    text-decoration: none;
    color: darkblue;
}

canvas {
	background-color: #181818;
}

.roundedBorder {
    border-radius: 20px;
    box-shadow:5px 5px 10px rgba(31, 73, 125, 0.4),0px 5px 5px rgba(31, 73, 125, 0.4);
    -moz-box-shadow:5px 5px 10px rgba(31, 73, 125, 0.4),0px 5px 5px rgba(31, 73, 125, 0.4);
    -webkit-box-shadow:5px 5px 10px rgba(31, 73, 125, 0.4),0px 5px 5px rgba(31, 73, 125, 0.4);
    -o-box-shadow:5px 5px 10px rgba(31, 73, 125, 0.4),0px 5px 5px rgba(31, 73, 125, 0.4);
}

.popup {
    width: 50%;
    background-color: #f8f8ff; 
    padding: 10px;
    margin: 0 auto; 
    position: absolute; 
    left: 25%; 
}

.view {
    width: 96%;
    background-color: #f8f8ff; 
    padding: 10px;
    margin: 0 auto; 
    position: absolute; 
    left: 2%; 
}

.buttonStyle {
    display: block;
    text-align: center;
    text-decoration: none;
    background-color:rgb(0, 128, 128);
    border-radius: 10px;
    border: none;
    color: white;
    min-height: 40px;
    font-size: 16px;    
    transition: all .1s ease-in-out; 
    outline: none;
    cursor: pointer;
}
.buttonStyle:hover:enabled { transform: scale(1.07); }
.buttonStyle:disabled { opacity: 0.5; cursor: not-allowed; }

#infoBox ul { margin-top: 5px; margin-bottom: 7px; }

@media only screen and (max-width: 480px) { 
    .roundedBorder { border-radius: 10px; }
    .popup {
        width: 90%;
        left: 5%; 
    }
}