Accordeon css

@import url('https://fonts.googleapis.com/css?family=Poppins');

body {
    font-family: 'Poppins', sans-serif;
}

#accordion {
    border: 2px solid #cdc7c7;
    display: inline-block;
    width: 40%;
    font-size: 1.3rem;
}

.accordion{
    border: 2px solid #cdc7c7;
    display: inline-block;
    width: 40%;
    font-size: 1.3rem;
}

.accordion p {
    margin: 1em;
}

.button {
    float: right;
    background: #393636;
    padding: 0.1em 1em 0.1em 1em;
    color: white;
    cursor: pointer;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 3px;
}

.extra {
    display: none;
}
#extra {
    display: none;
}

.head {
    background: #ccccff;
    padding: 1em;
}