message: Add support for dropdown's style in ie
diff: background-image: url("data:image/svg+xml,%3C%3Fxml version='1.0' encoding='utf-8'%3F%3E%3C!-- Generator: Adobe Illustrator 21.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0) --%3E%3Csvg version='1.1' id='Layer_1' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 10 10' style='enable-background:new 0 0 10 10;' xml:space='preserve'%3E%3Cstyle type='text/css'%3E .st0%7Bfill:%23404040;%7D%0A%3C/style%3E%3Cpolygon class='st0' points='2,2 0,4 5,9 10,4 8,2 5,5 '/%3E%3C/svg%3E%0A");
  background-repeat: no-repeat, repeat;
  background-position: right 0.7em top 50%, 0 0;
  - background-size: 0.65em auto, 100%;
  + background-size: 0.65em 100%;
  border: none;
  border-bottom: 0.07em solid #d4d4d4;
  font-family: inherit;
  .sv-dropdown option {
  background-color: #ffffff;
  }
  +.sv-dropdown::-ms-expand {
  + display: none;
  +}
  