.content_box {
  max-width: 1200px;
  margin: 50px auto;
}
.content_box .content_header_info {
  display: flex;
  justify-content: space-between;
  font-size: 24px;
  margin-bottom: 24px;
}
.content_box .content_header_info a:hover {
  color: #666666;
}
.content_box .main_content {
  padding: 38px 40px;
  background-color: #fff;
}
.content_box .main_content img {
  max-width: 100%;
}
.widget-title {
  height: 50px;
  line-height: 50px;
  border-left-color: #303030 !important;
  font-size: 16px;
}
.sidebar.sidebar-left li.active a {
  background-color: black !important;
}
.sidebar.sidebar-left li:hover a {
  background-color: black !important;
}