a:hover { text-decoration: underline; }
div.method_rec { background: #FFFCE4; border-color: #2EB7B8; }
h3.method_rec  { color: #2EB7B8; }
.color     { color: #2EB7B8; }
div.blocks { background: #FFFCE4; border-color: #2EB7B8; }
h3.blocks  { color: #2EB7B8; }

.back-to-top {
    position: fixed;
    bottom: 2em;
    left: 0px;
    text-decoration: none;
    color: #000000;
    background-color: rgba(235, 235, 235, 0.80);
    font-size: 12px;
    padding: 1em;
    display: none;
}

.back-to-top:hover {    
    background-color: rgba(135, 135, 135, 0.50);
}