omnibox.css

.omn-container {
  box-sizing: border-box;
  display: flex;
  z-index: 3;
  position: relative;
  background: #fff;
  border: 1px solid #dfe1e5;
  box-shadow: none;
  margin: 0 auto;
  width: 100%;
  align-items: center;
  border-radius: 14px;
  padding: 4px 10px;
  font-size: 15px;
}
@media (min-width: 768px) {
  .omn-container {
    border-radius: 24px;
    padding: 6px 12px;
    font-size: 16px;
  }
}
.omn-search-icon,
.omn-clear {
  height: 22px;
  line-height: 22px;
  width: 22px;
  margin-right: 5px;
}
.omn-clear {
  display: none;
  cursor: pointer;
  margin-right: 10px;
}
.omn-input {
  width: 100%;
  border: transparent;
  padding: 5px;
  overflow-x: hidden;
}

.omn-hint {
  display: flex;
  color: #2559c9;
  white-space: nowrap;
  text-wrap: nowrap;
}

.omn-hint-gapline {
  width: 1px;
  height: 15px;
  background: #9cb5eb;
  margin: 0 5px;
  align-self: center;
}

.omn-filled {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  box-shadow: 0 1px 6px rgba(32, 33, 36, 0.28);
  border-color: transparent;
}

.omn-input:focus {
  outline: none;
}

.omn-dropdown {
  position: absolute;
  z-index: 999;
  margin-top: -1px;
  width: 100%;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #fff;
  border-radius: 0 0 24px 24px;
  box-shadow: 0 4px 6px rgba(32, 33, 36, 0.28);
  border: 0;
}

.omn-gapline {
  border-top: 1px solid #e8eaed;
  margin: 0 20px 0 14px;
  padding-bottom: 4px;
}

.omn-dropdown-item {
  padding: 0.6rem 1rem;
  display: flex;
  font-size: 16px;
}

.omn-dropdown-item a {
  font-weight: normal;
  text-decoration: none;
  color: inherit;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.omn-dropdown-item a:visited {
  color: inherit;
}

.omn-dropdown-item:hover {
  cursor: pointer;
}

.omn-dropdown-item img {
  width: 18px;
  height: 18px;
  padding: 2px;
  vertical-align: middle;
}

.omn-dropdown-indicator {
  display: none;
  position: absolute;
  box-sizing: border-box;
  left: 0;
  top: 0;
  height: 100%;
  border: 2px #3168cb solid;
  border-radius: 0 10px 10px 0;
}

.omn-selected .omn-dropdown-indicator {
  display: block;
}

.omn-selected,
.omn-dropdown-item:hover {
  background-color: #f2f2f2;
}

.omn-match {
  font-weight: 600;
}

.omn-dim {
  font-weight: 300;
  color: #474747;
}