html {
    height: 100vh;
    font-family: Baloo;
}

body {
    padding: 10px;
    background-image: url("https://c4.wallpaperflare.com/wallpaper/798/402/355/gradient-wallpaper-preview.jpg");
    background-size:cover;
    background-repeat: no-repeat;
    text-align:center;
}

body p {
    color: whitesmoke;
    font-family: Baloo;
}

#emoji-container {
    margin-top: 10px;
    padding-top:40px;
    text-align: center;
}

.ipad{
    background-image: url("https://i.ibb.co/ZBKLnzt/Picture-1.png");
    background-size:cover;
    height:250px;
    width: 600px;
    min-width:600px;
    margin: 0 auto;
}

#emoji-container span {
    margin: 10px;
    font-size: 60px;
    width:200px;
    max-width:200px;
}

#push-btn, #unshift-btn, #shift-btn,#pop-btn{
    background-color: #000;
    -webkit-box-shadow: 0px 0px 30px 5px #636794;
    -moz-box-shadow: 0px 0px 30px 5px #636794;
    box-shadow: 0px 0px 30px 5px rgba(99, 103, 148, 0.5);
}

#shift-btn,#pop-btn {
    background-color: #000;
    -webkit-box-shadow: 0px 0px 30px 5px #3CA6B3;
    -moz-box-shadow: 0px 0px 30px 5px #3CA6B3;
    box-shadow: 0px 0px 30px 5px rgba(60, 166, 179, 0.5);
}

h1 {
    letter-spacing: 2px;
    text-align: center;
    color: whitesmoke;
}

input {
    margin: 0 auto;
    display: block;
    border: none;
    height: 30px;
    background: white;
    border-radius: 6px;
    text-align: center;
    width:250px;
}

button {
    font-family: Baloo;
    background: darkcyan;
    color: whitesmoke;
    border: none;
    padding: 4px 10px;
    border-radius: 6px;
    margin: 0 4px;
}

.buttons-wrapper {
    display: flex;
    justify-content: center;
    margin: 10px 0 0;
}