#top-screen,
#bottom-screen {
    background-color: #e3efc2;
    color: #f6f6f6;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    text-align: center;
}
#keyboard {
    margin: 20px 0;
}
#keyboard span {
    background-color: #fff47b;
    border: 1px solid #ffc500;
    border-radius: 5px;
    color: #262626;
    display: inline-block;
    height: 20px;
    line-height: 20px;
    margin: 5px;
    width: 20px;
}
#keyboard span[data-disabled] {
    visibility: hidden;
}

#canvas {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    background-color: white;
    border-radius: 5px;
}

#display {
    display: inline-block;
    letter-spacing: 2px;
    margin-top: 20px;
}

#display span.failed {
    color: #F00;
}

#display span.success {
    color: #00c700;
}

#display span {
    color: black;
    font-size: x-large;
}

#btn-reset {
    background-color: orange;
    padding: 1% 5%;
    border: 2px yellow solid;
    border-radius: 10px;
}