body {
  height: 100dvh;
  display: flex;
  flex-direction: column;

  align-items: center;
  background: rgb(15, 3, 122);
  background: linear-gradient(
    311deg,
    rgba(15, 3, 122, 1) 5%,
    rgba(15, 2, 60, 1) 57%
  );
  font-family: sans-serif;
  color: antiquewhite;
}

img {
  width: 100%;
  object-fit: contain;
}
.container {
  width: 100%;
  max-width: 600px;
  line-height: 1.5rem;
  padding: 10px;
}
.toggle-container {
  text-align: center;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-switch .slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 34px;
}

.toggle-switch .slider:before {
  position: absolute;
  content: '';
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

.toggle-switch input:checked + .slider {
  background-color: #2196f3;
}

.toggle-switch input:checked + .slider:before {
  transform: translateX(26px);
}

.toggle-switch input:checked ~ body {
  background-color: #000;
  transition: background-color 0.4s;
}