body {
  background: #111;
  color: #0f0;
  font-family: monospace;
  font-size: 1.2rem;
  line-height: 1.5rem;
  padding: 1rem;
}
h1 {
  color: #0ff;
  display: flex;
  justify-content: center;
}
#log {
  background: #000;
  padding: 1rem;
  height: 300px;
  overflow-y: scroll;
  border: 1px solid #333;
}
input,
button {
  padding: 0.5rem;
  margin-top: 1rem;
}

button {
  background: #222;
  color: #0f0;
  border: 1px solid #333;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background: #333;
}
input {
  background: #222;
  color: #0f0;
  border: 1px solid #333;
  border-radius: 5px;
}

div.control-group {
  display: flex;
  margin: 5px 0px;
  justify-content: space-between;
  align-items: center;
  /* height: 0.5em; */
  padding: 0.5em 0px;
}
div.control-group input {
  width: 50%;
  border-radius: 5px;
}

div.control-group #test-log-form {
  margin-left: auto;
}

div.control-group div.button-group {
  margin-left: 15px;
}
div.control-group div.button-group button {
  margin-left: 0px;
}

div#log {
  /* rounded corners */
  border-radius: 5px;
}