.none { display: none; }
.block { display:block; color:white; }
.block h4 {color:white;}
.cob-reveal-button { position:absolute; bottom:30px; left:45px; }
.cob-reveal-arrow { padding:0 0 0 5px;
    transform-origin: 45% 48%;
    transition: transform 0.5s;
    font-size:1em;                        
    display:inline-block;
}

.cob-reveal-arrow.down {                        
    transform: rotate(90deg);
    transform-origin: 45% 48%;
    transition: transform 0.5s;
}
.cob-reveal-arrow.up {                        
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
    transition: transform 1s;
}