html,
body {
  margin: 0px;
  padding: 0px;
  width: 100%;
  height: 99%;
  position: relative;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: #ffffff;
  background: radial-gradient(ellipse at center, white 20%, #d2d2d2 100%);
  padding: 0px;
}

h1 {
  margin: 0px;
}

p {
  margin: 0px;
}

canvas {
  position: relative;
  margin: 0 auto 3em auto;
  padding: 0;
  overflow: visible;
  background-clip: content-box;
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.54);
  background-color: white;
  width: 100%;
}

.center {
  width: 760px;
  height: 780px;
  position: absolute;
  left: 50%;
  top: 20%;
  margin-left: -360px;
  margin-top: -200px;
  text-align: center;
  display: -ms-flexbox;
  display: flex;
  -ms-flex: 1 auto;
  flex: 1 auto;
  background: black;
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.25);
}

.Sidebar {
  display: inline-block;
  width: 35%;
  background: white;
  overflow-y: scroll;
  overflow-x: hidden;
}

.Content {
  display: inline-block;
  width: 65%;
  background: #3E3E3E;
  padding: 3em;
  overflow-y: scroll;
  overflow-x: hidden;
}

.Button {
  padding: 5px 15px;
  font-size: 13px;
  border-radius: 4px;
  border: 1px inset rgba(0, 0, 0, 0.3);
  background-color: #4ECE3D;
  color: white;
  text-align: center;
  cursor: pointer;
  transition: background-color 180ms ease-in;
}

.Button:hover {
  background-color: #40B730;
}

.Button--is-primary {
  border: none;
  font-size: 16px;
  padding: 10px 25px;
}

.Button--is-active {
  background-color: #39A12B;
}

.InputFile {
  margin: 1em auto;
}

.InputFile__input {
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  z-index: -1;
}

.InputFile__label {
  cursor: pointer;
}

.FileList {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  font-size: 0.8em;
}

.FileList__item {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding: 0 1.5em;
  transition: background 180ms ease-in;
  cursor: pointer;
  width: 100%;
}

.FileList__item:hover {
  background: #dedede;
}

.FileList__item figure {
  margin: 0;
  margin-right: 1em;
}

.FileList__item small {
  display: block;
  color: #aaa;
}

.FileList__item h3 {
  text-align: left;
  text-overflow: ellipsis;
  overflow: hidden;
}