#main-content {
    margin-bottom: 0;
}
.topics-section {
    position: sticky;
    top: 60px;
    width: 100%;
    height: 60px;
    background-color: white;
    box-shadow: 0 1px 0 0 rgba(0,0,0,.05);
    z-index: 50;
}

.topics-main {
    width: 1200px;
    height: 60px;
    margin: 0 auto;
}
.topics-main .topics-item {
    font-size: 14px;
    color: rgb(89,89,89);
    height: 100%;
    margin: 0 15px;
    font-weight: bold;
    cursor: pointer;
}
.selected-topic.topics-item {
    border-bottom: 3px solid #1088f2;
    color: #262626
}

.topics-item:hover:not(.selected-topic) {
    color: rgb(16,136,243);
}