style.css

@import url("https://fonts.googleapis.com/css2?family=La+Belle+Aurore&family=Poppins&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  height: 100vh;
  width: 100vw;
  background-color: #203a43;
  display: flex;
  justify-content: center;
  align-items: center;
}

.box {
  position: relative;
  height: 70vh;
  width: 40vw;
  background-color: #1565c0;
  border-radius: 5px;
  box-shadow: 5px 7px 10px rgba(0, 0, 0, 0.3), -5px -2px 10px rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background-color: antiquewhite;
  height: 70%;
  width: 70%;
  border-radius: 5px;
  overflow: hidden;
  position: relative;
  box-shadow: 3px 5px 10px rgba(0, 0, 0, 0.4), -3px -5px 10px rgba(0, 0, 0, 0.4);
  animation: popup 0.5s linear forwards;
}

@keyframes popup {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}

.container #quotes {
  position: relative;
  width: 70%;
  margin: auto;
  top: 30%;
  font-family: "La Belle Aurore", cursive;
  font-size: 23px;
  font-weight: bold;
  color: #86a8e7;
}

.container #author {
  position: absolute;
  right: 20px;
  bottom: 28%;
  font-family: "La Belle Aurore", cursive;
  font-size: 20px;
  font-weight: bold;
  color: #86a8e7;
}

.container #next {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 10px 0px;
  color: #fff;
  background-color: #4286f4;
  outline: none;
  border: none;
  cursor: pointer;
  transition: 0.4s;
  font-size: 16px;
}

.container #next:hover {
  background-color: #2980b9;
}

.container #tweet {
  position: absolute;
  right: -10px;
  top: -45px;
  padding: 50px 15px;
  font-size: 25px;
  transform: rotate(-45deg);
  background-color: #1565c0;
  border: none;
  box-shadow: 0px 0px 10px #4286f4;
  cursor: pointer;
}

.container #tweet i {
  transform: rotate(45deg);
  color: antiquewhite;
}

.container .fa-quote-left {
  position: absolute;
  font-size: 3.5rem;
  left: 30px;
  top: 40px;
  color: #86a8e7;
}