style.css

body {
    font-family: "Open Sans", sans-serif;
    background: url("images/texture.png");
}

.clearfix:after {
    content: "";
    display: table;
    clear: both;
}

.chord:hover, .note:hover, .up:hover, .down:hover, #all-up:hover, #all-down:hover {
    filter: drop-shadow(2px 2px 2px);
}

.chord {
    background-color: white;
}

.key.white span {
    position: relative;
    margin: 75px 5px 0 4px;
    font-size: 15px;
    float: left;
    color: black;
}

.key.black span {
    position: relative;
    margin: 50px 0 0 1px;
    font-size: 13px;
    float: left;
    color: white;
}

#piano-frame {
    background: #333;
    padding: 15px 0 0 10px;
    margin-bottom: 20px;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    border-bottom-left-radius: 3px;
    border-bottom-right-radius: 3px;
    height: 95px;
}

#piano-frame .key span {
    display: none;
}

#piano-frame.with-labels .key span {
    display: block;
    pointer-events: none;
}

#black-keys {
    position: relative;
    left: 12px;
}

#white-keys {
    position: relative;
    left: 0;
}

.black.dummy {
    visibility: hidden;
}

.key.white {
    height: 100px;
    width: 20px;
    background:white;
    display: inline-block;
    position: relative;
}

.key.black {
    height: 70px;
    width: 20px;
    background: black;
    display: inline-block;
    position: relative;
    top: -105px;
}

.key:active {
    filter: drop-shadow(2px 2px 2px rgb(0,0,0));
}

.key {
    border-bottom-left-radius: 3px;
    border-bottom-right-radius: 3px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 7px auto;
    padding-top: 49px;
    margin-top: -35px;
}

.widget {
    background-color: #5F5F5F;
    color: white;
}

.widget h2 {
    display: inline-block;
}

.show-widget {
    height: auto;
    float: left;
    margin-right: 20px;
    display: inline-block;
}

.header {
    width: 100%;
}

.column {
    float: left;
}

.column-third {
    width: 33.33333%;
}

.column-half {
    width: 50%;
}

.column-twothirds {
    width: 66.66667%;
}

.column-full {
    width: 100%;
}

@media (max-width: 800px) {
    .column-1,.column-2 {
        width:100%;
    }
}

.centering {
    text-align: center;
}

.mini-input {
    width: 20%;
}

td.instrument-label {
    border: none !important;
}

.mixer label {
    width: 20%;
}

.instrument-slider {
    width: 100%;
}

.inner-box {
    background-color: #fff;
    color: black;
}

.header {
    color: white;
}

.box {
    padding: 3px 14px;
    margin: 0 7px 14px 7px;
    border-radius: 5px;
    border: 5px;
    box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    -o-box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    -ms-box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    -moz-box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    -webkit-box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.centered {
    margin: auto;
}

.chart {
    width: 100%;
    margin-bottom: 15px;
}

.now-playing {
    table-layout: fixed;
}

.chart td {
    text-align: center;
    border: 1px solid grey;
    padding: 5px;
}

label {
    width: 34%;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    text-align: right;
    padding-right: 7px;
    line-height: 35px;
    display: inline-block;
}

input {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 3px 7px 4px 7px;
    white-space: nowrap;
    background: #fcfcfc;
    border-radius: 2px;
    border: 1px solid #b2b2ab;
    font-family: "Trebuchet MS", sans-serif;
    height: 28px;
    margin: 4px 0 3px 0;
}

textarea {
    background: #fcfcfc;
    border: 1px solid #b2b2ab !important;
    border-radius: 2px;
    padding: 7px;
}