.app-wrapper {
  display: flex;
  flex-direction: column;
  /* position: absolute; */
  align-self: center;
  width: 432px;
  height: 768px;
  overflow-y: auto;
  background: #fff;
}

.hero-image {
  height: 300px;
  background-image: url(http://i.imgur.com/L8suaDZ.jpg);
  background-size: cover;
}

.nav-bar {
  display: flex;
  flex-direction: row;
  width: 100%;
  height: 50px;
  align-items: center;
}

.nav-btn {
  flex: 1;
  text-align: center;
  background: #404040;
  line-height: 50px;
  color: #fff;
  user-select: none;
  cursor: pointer;
}

.main-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 20px;
  background: ;
}

.main-page h1 {
  margin: 10px 0px;
  font-size: 26px;
}

.main-page p {
  margin: 5px 25px;
  font-size: 16px;
  text-align: center;
}

.pic {
  margin: 20px 0px;
}

.computer {
  height: 150px;
  width: 320px;
  background: url(http://i.imgur.com/2EbQYGA.jpg) center no-repeat;
  background-size: cover;
}

.tv {
  height: 250px;
  width: 320px;
  background: url(http://i.imgur.com/0kD08WU.jpg) center no-repeat;
  background-size: cover;
}

.radio {
  height: 250px;
  width: 320px;
  background: url(http://i.imgur.com/rs1NW31.jpg) center no-repeat;
  background-size: cover;
}