style.css

.post-detail--header--smile-button {
    margin: 0 4px;
}

.post-detail--header--smile-button div {
    background: rgb(218, 85, 47) !important;
    -webkit-box-align: center;
    align-items: center;
    display: flex;
    flex-flow: row nowrap;
    border-radius: 3px;
    box-shadow: 0 0 2px rgba(0,0,0,0.1);
    font-size: 14px;
    overflow: hidden;
}

.post-detail--header--smile-button div a {
    position: relative;
    background: #da552f !important;
    color: white;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: .5px;
    text-transform: uppercase;
    padding: 0 15px;
    white-space: nowrap;
    flex: 1;
    -webkit-box-flex: 1;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    display: flex;
    height: inherit;
}

.post-detail--header--smile-button div a:hover {
    background: #DE6644 !important;
}

.post-detail--header--smile-button div a img {
    display: block;
    margin-top: -1px;
    height: 24px;
    width: 24px;
}

.post-detail--header--smile-button span {
    display: block;
}

@media screen and (min-width: 769px) {
    .post-detail--header--smile-button div {
        height: 44px;
        min-width: 115px;
    }
}

@media screen and (max-width: 768px) {
    .post-detail--header--smile-button div {
        height: 40px;
        min-width: 110px;
    }
}