.button-popup {
padding: 15px 40px;
-webkit-box-shadow: inset 0 -3px 0 rgba(0,0,0,.25);
box-shadow: inset 0 -3px 0 rgba(0,0,0,.25);
background-color: #c60052;
border-color: #c60052;
font-size: 17px;
transition: all .2s;
border-radius: 3px;
color: #fff;
display: inline-block;
}

.about-author {
    display: none;
}