.Header__name {
    padding: 1.625rem 0;
    font-size: 1.25rem;
    color: #FFF;
    overflow: hidden;
    float: left;
    text-overflow: ellipsis;
    white-space: nowrap;
  	height: 300px;
}

.SearchContainer__searchIcon {
    padding: 0.8rem 1rem 0;
    border-radius: 0 0.313rem 0.313rem 0;
}
.commonStyle__zt3BrandBg {
    background-color: #000000;
}
.SearchContainer__downArrow {
    width: 0;
    height: 0;
    display: block;
    margin: 8px 0px 0px;
    border: solid transparent;
    border-color: rgba(194, 225, 245, 0);
    border-top-color: #000000;
    border-bottom: 0;
    border-width: 5px;
}

.SearchResult__SearchResultmark {
    color: #FFF;
    background-color: #cccccc;
}

### Avatar Pic ###
.AvatarText__avatarText {
    font-size: 1rem;
    line-height: 2.5rem;
    border-radius: 50%;
    background: #000000;
    border: 1px solid #ffffff;
    width: 2.5rem;
    height: 2.5rem;
}
<style>
.commonStyle__zt3Brand {
    color: #ffffff;
}

.KbDetailLtContainer__articleContent a {
    color: #666666;
}