* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a {
  text-decoration: none;
  color: #000;
}

body {
  font-family: "Roboto", sans-serif;
  background-color: #f5f5f5;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

.app {
  background: url(./images/bg.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center bottom;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.content {
  background: url(./images/content.webp);
  width: 45%;
  height: 50%;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  position: relative;
}

.btn1,
.btn2 {
  width: 42%;
  height: 30%;
  position: absolute;
  background: transparent;
  bottom: 0%;
}

.btn1 {
  left: 7%;
}

.btn2 {
  right: 7%;
}

@keyframes scaleAnimation {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.btn a img {
  animation: scaleAnimation 2.5s infinite ease-in-out;
}

@media screen and (max-width: 768px) {
  .app {
    background: url(./images/bg-mb.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center bottom;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
  }

  .content {
    width: 90%;
    height: 40%;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    position: relative;
  }

  .btn {
    position: absolute;
    bottom: 3%;
    height: 20%;
    width: 40%;
  }

  input {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 30%;
    height: 14%;
    width: 60%;
    font-size: 1rem;
  }
}