odin-default-css-exercises/animation/03-pop-up/style.css

* {
  padding: 0;
  margin: 0;
}

body {
  overflow: hidden;
}

.button-container {
  width: 100vw;
  height: 100vh;
  background-color: #ffffff;
  opacity: 100%;
}

#trigger-modal,
.popup-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#trigger-modal {
  padding: 20px;
  color: #ffffff;
  background-color: #0e79dd;
  border: none;
  border-radius: 5px;
  font-weight: 600;
}

.popup-modal {
  width: 30%;
  height: 15%;
  background-color: white;
  border: 1px solid black;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 10%;
  opacity: 0;
}

#close-modal {
  padding: 20px;
  color: #ffffff;
  background-color: #0e79dd;
  border: none;
  border-radius: 5px;
  font-weight: 600;
}