.fixed {
    position: fixed;
    top:0; left:0;
    width: 100%;
    z-index: 9999;
    background-color: #fff;
    border-bottom: 1px solid;
}

.btn-fixed-lateral {
    width: 80px;
    display: inline;
    position: fixed;
    right: 15px;
    z-index: 99999;
    opacity: 0.9;
    margin-top: 5%;
    background-color: #00bca7;
    border: 1px solid #05a895;
    color: #fff;
}

.btn-fixed-lateral:hover {
    width: 100px;
    opacity: 1;
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2);
    -webkit-transition: background-color .25s,color .15s,box-shadow .25s,opacity 0.25s,filter 0.25s,border 0.15s;
    color: #fff;
}