body {
  font-family: "Arial", sans-serif;
  margin: 0;
}

#error {
  background: red;
  color: white;
  display: none;
  font-size: 1em;
  font-weight: bold;
  padding: 0.3em;
  width: 100%;
}

#hide-error {
  border: 1px solid white;
  border-radius: 2px;
  float: right;
  margin-right: 10px;
  padding: 0 3px;
  position: relative;
  top: -1.5px;
}

#hide-error:hover {
  cursor: pointer;
}

h1 {
  border-bottom: 1px solid black;
  margin: 5px;
  padding: 15px;
}

#content {
  margin: 20px;
}

button {
  background-color: #00DD44;
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
  font-weight: bold;
  font-size: 1em;
  height: 1.4em;
  margin-top: 15px;
  width: 150px;
}