.bmark {
  display: flex;
  left: 0;
  right: 0;
  background-color: #f2f2f2;
  width: 785px;
  margin: auto;
  transition: border-radius ease 350ms;
  border-radius: 15px;
  overflow: hidden;
  z-index: 1;
}
.bmark.sticky {
  position: fixed;
  top: 92px;
  border-radius: 0 0 15px 15px;
  box-shadow: 0 1px 3px #ccc;
}
.bmark a {
  padding: 8px 14px;
  text-align: center;
  border-right: 1px solid #ccc;
  color: #000;
  text-decoration: none;
  font-size: 14px;
  line-height: 21px;
}
.bmark a:hover, .bmark a.active {
  background-color: #dcefff;
}
.bmark a:last-child {
  border: 0;
}
@media(max-width:600px) {
  .bmark {
    flex-wrap: wrap;
    width: auto;
    position: static !important;
  }
  .bmark a {
    width: 100%;
  }
}