styles.css

.block_gapps .gapps {
    margin: 0 0 10px 0;
}

.block_gapps .gapps li {
    padding: 2px 0;
}

.block_gapps .authorize {
    display: none;
}

.block_gapps .messages {
    margin-top: 10px;
    margin-bottom: 0;
}

.block_gapps.block .content hr {
    margin: 2px 0;
}

.block_gapps .messages li:last-child hr {
    display: none;
}

/* Compatibility with non-bootstrap based themes */
.block_gapps .icon-gmail,
.block_gapps .icon-calendar,
.block_gapps .icon-drive {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-top: 1px;
    *margin-right: .3em;
    line-height: 16px;
    vertical-align: text-top;
    background: no-repeat 0 0;
}

.block_gapps .icon-gmail {
    background-image: url("https://www.gstatic.com/images/icons/material/product/1x/gmail_16dp.png");
}

.block_gapps .icon-calendar {
    background-image: url("https://www.gstatic.com/images/icons/material/product/1x/calendar_16dp.png");
}

.block_gapps .icon-drive {
    background-image: url("https://www.gstatic.com/images/icons/material/product/1x/drive_16dp.png");
}

.block_gapps .unstyled {
    margin-left: 0;
    list-style: none;
}