* {margin: 0px; padding: 0px; }
    body { font-family: Arial, Helvetica, sans-serif; color: #666 }
    h1 { text-align: center; padding: 0px; letter-spacing: 5px;}
    div.toolbar { background-color: #111; color: #ccc; display:block; position:fixed; width: 100%; z-index: 100}
    div.toolbar div.left {float: left; padding: 5px; line-height: 27px; }
    div.toolbar div.right {float: right; padding: 5px; line-height: 27px; }

    .slidecontainer {
        width: 100%; /* Width of the outside container */
    }

    /* The slider itself */
    .slider {
        -webkit-appearance: none;
        appearance: none;
        width: 100%;
        height: 15px;
        border-radius: 5px;  
        background: #d3d3d3;
        outline: none;
        opacity: 0.7;
        -webkit-transition: .2s;
        transition: opacity .2s;
    }

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  border-radius: 50%; 
  background: black;
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: rgb(168, 23, 23);
  cursor: pointer;
}
.menu li {
    float: left;
    list-style: none;
    padding-right: 15px;
    line-height: 32px;
}
.menu_btn {
    padding: 5px;
}
.note_table {
    padding-top: 22px;
}
.note_table td {
    padding: 0px 6px 6px 0px;
}
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap');
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body {
  background: #E3F2FD;
}
.wrapper {
  padding: 35px 40px;
  border-radius: 20px;
  background: #141414;
  width: 100%;
}
.wrapper header {
  display: flex;
  color: #B2B2B2;
  align-items: center;
  justify-content: space-between;
}
header h2 {
  font-size: 1.6rem;
}
header .column {
  display: flex;
  align-items: center;
}
header span {
  font-weight: 500;
  margin-right: 15px;
  font-size: 1.19rem;
}
header input {
  outline: none;
  border-radius: 30px;
}

.piano-keys {
  display: flex;
  list-style: none;
  /* margin-top: 40px; */
}
.piano-keys .key {
  cursor: pointer;
  user-select: none;
  position: relative; 
  text-transform: uppercase;
}
.piano-keys .black {
  z-index: 2;
  width: 44px;
  height: 140px;
  margin: 0 -22px 0 -22px;
  border-radius: 0 0 5px 5px;
  background: linear-gradient(#333, #000);
}
.piano-keys .black.active {
  box-shadow: inset -5px -10px 10px rgba(255,255,255,0.1);
  background:linear-gradient(to bottom, #000, #434343);
}
.piano-keys .white {
  height: 230px;
  width: 70px;
  border-radius: 8px;
  border: 1px solid #000;
  background: linear-gradient(#fff 96%, #eee 4%);
}
.piano-keys .white.active {
  box-shadow: inset -5px 5px 20px rgba(0,0,0,0.2);
  background:linear-gradient(to bottom, #fff 0%, #eee 100%);
}
.piano-keys .key span {
  position: absolute;
  bottom: 20px;
  width: 100%;
  color: #A2A2A2;
  font-size: 1.13rem;
  text-align: center;
}
.piano-keys .key.hide span {
  display: none;
}
.piano-keys .black span {
  bottom: 13px;
  color: #888888;
}



.track {
    width: 100px;
}
/* Works on Firefox */
* {
  scrollbar-width: thin; 
  scrollbar-color: grey black;
}

/* Works on Chrome, Edge, and Safari */
*::-webkit-scrollbar {
  width: 12px;
}

*::-webkit-scrollbar-track {
  background: grey;
}

*::-webkit-scrollbar-thumb {
  background-color: black;
  border-radius: 20px;
  border: 3px solid grey;
}

.slider_value {
  width: 30px;
  padding-left: 10px;
}
#main_menu {
  display: flex;
}
#main_menu li {
  list-style-type: none;
  margin-left: 14px;
}
#main_menu li a {
  color: #ccc;
  text-decoration: none;
}
#main_menu li a:hover {
  text-decoration: underline;
}
ul.downloads li {
  list-style: none;
}