redash/client/app/assets/less/inc/schema-browser.less

div.table-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  padding: 2px 22px 2px 10px;
  border-radius: @redash-radius;
  position: relative;

  .copy-to-editor {
    display: none;
  }

  &:hover {
    background: fade(@redash-gray, 10%);

    .copy-to-editor {
      display: flex;
    }
  }
}

.schema-container {
  height: 100%;
  z-index: 10;
  background-color: white;
}

.schema-browser {
  overflow-y: auto;
  overflow-x: hidden;
  border: none;
  margin-top: 10px;

  .collapse.in {
    background: transparent;
  }

  .copy-to-editor {
    color: fade(@redash-gray, 90%);
    cursor: pointer;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .table-open {
    padding: 0 22px 0 26px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    position: relative;

    .copy-to-editor {
      display: none;
    }

    &:hover {
      background: fade(@redash-gray, 10%);

      .copy-to-editor {
        display: flex;
      }
    }
  }
}

.schema-control {
  display: flex;
  padding: 0;

 .form-control {
   margin-right: 5px;
 }
}

.parameter-label {
  display: block;
}