body {
  margin: 0;
  min-height: 100vh;
  background-color: azure;
}

.nice-font {
  font-family: Georgia, 'Times New Roman', Times, serif;
}

.absolute {
  position: absolute;
}

.top-left {
  top: 10px;
  left: 10px;
}

.top-right {
  top: 10px;
  right: 10px;
}

.bottom-left {
  bottom: 10px;
  left: 10px;
}

.bottom-right {
  bottom: 10px;
  right: 10px;
}

.box {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px gray dashed;
  color: gray;
  transition: background-color 0.5s ease, color 0.5s ease;
}

.box:hover {
  background-color: gray;
  color: white;
  transition: background-color 0.5s ease, color 0.5s ease;
}

.video {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}