:root {
    --my-black: #343845;
}

html {
    height: auto;
}

* {
    /*border: 1px solid black;*/
    /*box-sizing: border-box;*/
}

body {
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-self: center;
    align-items: center;
    width: 100%;
    /*height: 100vh;*/
    font-family: 'Rubik', sans-serif;
    font-size: 1rem;
}

h2, h3 {
    font-weight: 300;
}

a:visited, a:link {
    color: var(--my-black);
}

.case {
    display: flex;
    flex-flow: row wrap;
    justify-content: center;
    align-items: center;
    align-content: center;
    width: 100%;
    height: 100vh;
    background: linear-gradient(0.375turn, #EAF6A3, #9AEABF);
}

.case > .phone  {
    margin: 5vh;
    flex: 1 1 250px;
}

.description {
    margin: 5vh;
}

/*.phone .description {*/
/*    flex-basis: 50vw;*/
/*    width: 50vw;*/
/*}*/

.phone {
    max-width: 435px;
    width: 100%;
    position: relative;
    height: 90vh;
}

.phone-img {
    width: 100%;
    position: absolute;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(1rem 1rem 1.5rem var(--my-black));
    opacity: 0;
    transition: opacity 1s ease;
}

.active {
    z-index: 1;
    opacity: 1;
}