body {
    width: 100%;
    margin: 0;
}

canvas {
    border-style: solid;
    border-width: 5px;
    box-shadow: 10px 10px;
}

h1, h2 {
    text-align: center;
    width: 100%;
}

h1 {
    font-size: 2.5em;   
}

h2 {
    font-size: 1em;   
}

#content {
    position: absolute;
    display: inline-block;
    left: 40px;
    top: 40px;
}

button {
    width: 100px;
    height: 30px;
    background-color: hsl(122, 41%, 13%);
    color: #d0c91c;
}

#reset {
    position: absolute;
    bottom: 10px;
    left: 10px;
}

#reset {
    position: absolute;
    bottom: 20px;
    left: 40px;
}

#undo {
    position: absolute;
    bottom: 20px;
    right: 30px;
}

#instructions {
    width: 100%;
}

#container {
    position: relative;
    position: absolute;
    width: 700px;
    left: 0;
    right: 0;
    padding: 20px;
    margin-left: auto;
    margin-right: auto;
    background-color: #eeeeee;
}

#main {
    font-size: 0;
    padding-left: px;
    padding-right: 20px;
    width: 560px;
    height: 620px;
    display: inline-block;
    background-color: hsl(122, 41%, 23%);
    position: relative;
    margin-left: 75px;
    border: 5px;
    border-style: solid;
    
}

#toplabels {
    position: absolute;
    font-weight: bold;
    color: #d0c91c;
    width: 500px;
    height: 40px;
    left: 45px;
}

#sidelabels {
    display: inline-block;
    font-weight: bold;
    color: #d0c91c;
    position: absolute;
    height: 500px;
    width: 40px;
    top: 45px;
}

#content canvas, #listeners {
    position: absolute;
    width: 500px;
    height: 500px;
}

.listener {
    display: inline-block;     
}

.toplabel {
    display: inline-block;
    text-align: center;
    font-size: 20px;
    height: 40px;
    padding-top: 10px;
}

.sidelabel {
    width: 40px;
    padding-left: 15px;
    font-size: 20px;
}

#listeners {
    left: 5px;
    top: 5px;
    font-size:0;
}