* {
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: rgb(58, 49, 49);
  margin: 0;
    background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;

}

.navbar {
  position: fixed;
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  width: 100%;
  z-index: 3;
  display: flex;
  justify-content: space-around;
  background-color: rgb(136, 136, 214);
  top: 0;
  left: 0;
}

.navbar li {
  float: left;
}

.navbar li a {
  display: block;
  padding: 7px;
  text-decoration: none;
  color: white;
}

.navbar li a:hover {
  background-color: lightblue;
}

.phone-container {
  width: 100%;
  max-width: 800px;
  height: 100vh;
  overflow: hidden;
  background: #fffefe;
  position: relative;
  margin: 0 auto;
  overflow-y: scroll;
  background-color: white;
  color: black;
  -ms-overflow-style: none;
  scrollbar-width: none;
}