body{
    font-family: 'Roboto', sans-serif;
}
.container{
    text-align: center;
}
h1{
    font-size: 2.2rem;
    margin: 0;
}
p{
    font-size: 1.4rem;
    margin: 0 0 1rem;
}
#laugh-btn{
    display: block;
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
    padding: 0;
    background: none;
    border: 0;
    cursor: pointer;
    font-size: 1.6rem;
    font-weight: 900;
}
#laugh-btn:active,
#laugh-btn:focus{
    outline: none;
}
#laugh-btn img{
    display: block;
    width: 100%;
    box-sizing: border-box;
    border-radius: 50%;
    border: 9px solid #191919;
    box-shadow: -4px 7px 10px #111;
    position: relative;
    top: -4px;
    left: 7px;
    transition: all 0.25s;
}
#laugh-btn:hover img{
    box-shadow: none;
    top: 0;
    left: 0;
}

@media screen and (min-height: 600px) {
    .container{
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
}