wsr_update.css

.wsr-top-button-block {
    display: none;
    margin-bottom: 1em;
}
.wsr-top-button-block > a{
    white-space: normal;
    font-weight: 300;
}

@media (min-width: @screen-xs) and (max-width: @screen-xs-max) {
    .wsr-top-button-block {
        display: block !important;
    }
}

@media (max-width: @screen-xs) {
       .wsr-top-button-block {
        display: block !important;
    }
}