add-contact.css

/* Add Contact Module */
#add-contact-module {
    display: inline-block;
    margin-bottom: 1px;
    margin-left: 8px;
}

#add-contact-module #open-add-contact-form-btn {
    background: #54bb7d;
    font-size: 1.5em;
    color: white;
    padding-bottom: 5px;
}

#add-contact-module form {
    position: absolute;
    padding: 10px;
    width: 150px;
    background-color: #e1e1e1;
    border: 1px solid #999;
    display: none;
}

#add-contact-module form input {
    width: 97%;
    margin: 2px 0;
}

#add-contact-module form button {
    background: #54bb7d;
    font-size: 1em;
    padding: 0px 10px;
    color: white;
    margin-top: 10px;
}

#add-contact-module:hover form {
    display: block;
}