body {
  font-family: sans-serif;
}

#editor {
  margin: 15px;
  margin-top: 100px;
  background: #fff;
  min-height: 100px;
  font-size: 16px;
  color: black;
  font-family: Arial, Helvetica, sans-serif;
}

#operation {
  margin: 15px;
  margin-top: 100px;
  background: #fff;
  min-height: 100px;
  font-size: 16px;
  color: black;
  font-family: Arial, Helvetica, sans-serif;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  min-height: 10px;
}
[contenteditable] {
  outline: none;
}
.editor-holder {
  margin: auto;
  /*max-width: 90%;
  min-width: 500px;*/
  margin-top: 30px;
  background: #343a40;
  /*width: fit-content;*/
  padding: 4px;
  border-radius: 3px;
  /*top: 5px;
  left: 50%;
  transform: translateX(-50%);*/
  position: fixed;
  z-index: 1000;
}