html,
body {
  width: 100%;
  height: 100%;
  background: #f7f7f7;
  margin: 0;
  padding: 0;
}

body {
  color: #333;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

a {
  color: rgb(0, 100, 200);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:visited {
  color: rgb(0, 80, 160);
}

label {
  display: block;
}

input,
button,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  padding: 0.4em;
  margin: 0 0 0.5em 0;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 2px;
}

input:disabled {
  color: #ccc;
}

input[type="range"] {
  height: 0;
}

button {
  color: #333;
  background-color: #f4f4f4;
  outline: none;
}

button:active {
  background-color: #ddd;
}

button:focus {
  border-color: #666;
}

.Resizer {
  background: #000;
  opacity: 0.2;
  z-index: 1;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -moz-background-clip: padding;
  -webkit-background-clip: padding;
  background-clip: padding-box;
}

.Resizer:hover {
  -webkit-transition: all 2s ease;
  transition: all 2s ease;
}

.Resizer.horizontal {
  height: 11px;
  margin: -5px 0;
  border-top: 5px solid rgba(255, 255, 255, 0);
  border-bottom: 5px solid rgba(255, 255, 255, 0);
  cursor: row-resize;
  width: 100%;
}

.Resizer.horizontal:hover {
  border-top: 5px solid rgba(0, 0, 0, 0.5);
  border-bottom: 5px solid rgba(0, 0, 0, 0.5);
}

.Resizer.vertical {
  width: 11px;
  margin: 0 -5px;
  border-left: 5px solid rgba(255, 255, 255, 0);
  border-right: 5px solid rgba(255, 255, 255, 0);
  cursor: col-resize;
}

.Resizer.vertical:hover {
  border-left: 5px solid rgba(0, 0, 0, 0.5);
  border-right: 5px solid rgba(0, 0, 0, 0.5);
}
.Resizer.disabled {
  cursor: not-allowed;
}
.Resizer.disabled:hover {
  border-color: transparent;
}