@import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Open Sans', sans-serif;
    background-color: rgba(100, 90, 100, 0.7);
}

.phone {
    width: 340px;
    height: 600px;
    overflow: hidden;
    position: relative;
    border-radius: 15px;
    border: 3px solid #EEE;
}

.phone .content {
    top: 0;
    left: 0;
    opacity: 0;
    width: 100%;
    object-fit: cover;
    position: absolute;
    height: calc(100% - 60px);
    transition: opacity 0.4s ease;
}

.phone .content.show {
    opacity: 1;
}

nav {
    left: 0;
    bottom: 0;
    width: 100%;
    margin-top: -5px;
    position: absolute;
}

nav ul {
    margin: 0;
    padding: 0;
    height: 60px;
    display: flex;
    list-style-type: none;
    background-color: #FFF;
}

nav li {
    flex: 1;
    color: #777;
    padding: 10px;
    text-align: center;
    cursor: pointer;
}

nav ul li p {
    margin: 2px 0;
    font-size: 12px;
}

nav ul li:hover,
nav ul li.active {
    color: black;
}