* {
  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/bg1.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.content {
  width: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.btn {
  margin-top: 3%;
}

@media screen and (max-width: 768px) {
  .app {
    background: url(./images/bg-mb1.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
  }

  .content {
    width: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .content {
    width: 90%;
  }
}