.spacer {
    height: 4em;
}

.btn_ {
    margin-bottom: 0;
    font-weight: 400;
    vertical-align: middle;
    touch-action: manipulation;
    cursor: pointer;
    user-select: none;
    background-image: none;
    border: 1px solid transparent;
    padding: 10px 16px;
    font-size: 18px;
    line-height: 1.3333333;
    border-radius: 6px;
    display: block;
    width: 100%;
}

#github-button {
    padding-left: 44px;
}