html,body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: sans-serif;
  background: #f8feff;
}
.header {
  width: 100%;
  padding: 5px;
  background: black;
  color: white;
}
.modal {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0; left: 0;
  background: rgba(0,0,0,0.9);
  display: none;
}
.modal.visible {
  display: block;
}
.modal .inner {
  padding: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%,-50%,0);
  background: white;
  border-radius: 2px;
}

h1 {
  margin-top: 0;
}
.form > div {
  margin-bottom: 10px;
}
label {
  width: 150px;
  display: inline-block;
}
input {
  width: 200px;
  font-size: 15px;
  border: 1px solid #888;
  font-family: sans-serif;
  padding: 5px;
}
textarea {
  width: 320px;
  height: 160px;
  padding: 5px;
  font-size: 15px;
  border: 1px solid #888;
  margin-top: 10px;
}

.folders, .folder {
  background: white;
  padding: 5px;
  margin: 5px;
  border: 1px solid #888;
  max-width: 400px;
}
.folders .name,
.folder .name {
  cursor: pointer;
  color: #08f;
  text-decoration: underline;
}

.list div {
  padding: 0 0 5px 0;
}

.heading {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-content: center;
  margin-bottom: 5px;
}
.heading b {
  padding: 5px 0;
}
.heading > div {
  flex: 1;
}
.heading .buttons {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-content: flex-end;
}
button,
.fileUploadButton {
  font-size: 15px;
  position: relative;
  overflow: hidden;
  font-family: sans-serif;
  padding: 5px;
  display: inline-block;
  background: #888;
  color: white;
  border: 0;
  margin-left: 5px;
}
button:first-child {
  margin: 0;
}
.fileUploadButton input {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}