Icon Replacement + background transparency (Text opacity) on the right of the drop-down box)

Icon Replacement + background transparency (Text opacity) on the right of the drop-down box)

Set the icon on the right of the html + css drop-down box:

First, check the general drop-down box:

The small triangle on the right cannot be changed. How can I replace it with the desired icon?

Let's take a look at the effect after replacement: <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + pgltzybzcm9 "http://www.2cto.com/uploadfile/Collfiles/20140902/20140902085822192.png" alt = "" http://zz.2cto.com/seo/ "target =" _ blank "class =" keylink "> seo8L3A + keys + MS64 + M/CwK2/keys/LXEsbO + sMmrzqrE48/ r0qq1xM/CwK2/keys + CjxwPsq + wp2juw.vcd4kpha + PGJyPgo8L3A + keys/LJ6NbDsbO + sM24w/keys + keys "select_icon">
In progress Unsolved

Css:

# Select_icon {

1. Width: 115px;
2. Overflow: hidden;
3. Background: url (.. /% E9 % A1 % B9 % E7 % 9B % AE/% E9 % A1 % B9 % E7 % 9B % AE % E6 % B5 % 8B % E8 % AF % 95% E7 % b3 % BB % E7 % BB % 9F/photo/down_gray.png) no-repeat right ;}. form_control {
   1. Height: 17px;
   2. Padding: 0px 12px;
   3. Border: none;
   4. Background: Transparent ;
   5. Width: 132px ;}
      132> 115
      Css: Background transparency (Text opacity ):
      Bacbackground: Transparent ;
      If opacity: 0 is set, the text in the drop-down box is transparent.