是否可以在网络浏览器中设置下拉菜单，使其真正起作用？
<div class="birthday-container">
<div class="form-group" ng-class="{'has-error' : isBirthdayInvalid(),
'has-success' : isBirthdayFormDirty()
&& !isBirthdayInvalid() }">
<label class="birthday-label">Birthday</label>
<div class="form-control fake-input-lg">
<div class="rbx-select-group month">
<select class="input-field rbx-select ng-valid ng-dirty ng-valid-parse ng-valid-birthday ng-not-empty ng-touched" id="MonthDropdown" tabindex="1" rbx-valid-birthday="" rbx-form-interaction="" rbx-form-validation="" name="birthdayMonth" ng-model="signup.birthdayMonth" ng-change="onChange()">
<option value="" disabled="" selected="selected">Month</option>
<option value="Jan">January</option>
<option value="Feb">February</option>
<option value="Mar">March</option>
<option value="Apr">April</option>
<option value="May">May</option>
<option value="Jun">June</option>
<option value="Jul">July</option>
<option value="Aug">August</option>
<option value="Sep">September</option>
<option value="Oct">October</option>
<option value="Nov">November</option>
<option value="Dec">December</option>
</select>
</div>
<div class="rbx-select-group day">
<select class="input-field rbx-select ng-untouched ng-valid ng-empty ng-dirty ng-valid-parse ng-valid-birthday" id="DayDropdown" tabindex="1" rbx-valid-birthday="" rbx-form-interaction="" rbx-form-validation="" name="birthdayDay" ng-model="signup.birthdayDay" ng-change="onChange()">
<option value="" disabled="" selected="selected">Day</option>
<option value="1">
01
</option>
<option value="2">
02
</option>
<option value="3">
03
</option>
<option value="4">
04
</option>
<option value="5">
05
</option>
<option value="6">
06
</option>
<option value="7">
07
</option>
<option value="8">
08
</option>
<option value="9">
09
</option>
<option value="10">
10
</option>
<option value="11">
11
</option>
<option value="12">
12
</option>
<option value="13">
13
</option>
<option value="14">
14
</option>
<option value="15">
15
</option>
<option value="16">
16
</option>
<option value="17">
17
</option>
<option value="18">
18
</option>
<option value="19">
19
</option>
<option value="20">
20
</option>
<option value="21">
21
</option>
<option value="22">
22
</option>
<option value="23">
23
</option>
<option value="24">
24
</option>
<option value="25">
25
</option>
<option value="26">
26
</option>
<option value="27">
27
</option>
<option value="28">
28
</option>
<option value="29">
29
</option>
<!-- ngIf: isValidBirthday(30,true) --><option value="30" ng-if="isValidBirthday(30,true)" class="ng-scope">
30
</option><!-- end ngIf: isValidBirthday(30,true) -->
<!-- ngIf: isValidBirthday(31,true) --><option value="31" ng-if="isValidBirthday(31,true)" class="ng-scope">
31
</option><!-- end ngIf: isValidBirthday(31,true) -->
</select>
</div>
<div class="rbx-select-group year">
<select class="input-field rbx-select ng-untouched ng-valid ng-empty ng-dirty ng-valid-parse ng-valid-birthday" id="YearDropdown" rbx-valid-birthday="" rbx-form-interaction="" rbx-form-validation="" tabindex="1" name="birthdayYear" ng-model="signup.birthdayYear" ng-change="onChange()">
<option value="" disabled="" selected="selected">Year</option>
<option value="2018">2018</option>
<option value="2017">2017</option>
<option value="2016">2016</option>
<option value="2015">2015</option>
<option value="2014">2014</option>
<option value="2013">2013</option>
<option value="2012">2012</option>
<option value="2011">2011</option>
<option value="2010">2010</option>
<option value="2009">2009</option>
<option value="2008">2008</option>
<option value="2007">2007</option>
<option value="2006">2006</option>
<option value="2005">2005</option>
<option value="2004">2004</option>
<option value="2003">2003</option>
<option value="2002">2002</option>
<option value="2001">2001</option>
<option value="2000">2000</option>
<option value="1999">1999</option>
<option value="1998">1998</option>
<option value="1997">1997</option>
<option value="1996">1996</option>
<option value="1995">1995</option>
<option value="1994">1994</option>
<option value="1993">1993</option>
<option value="1992">1992</option>
<option value="1991">1991</option>
<option value="1990">1990</option>
<option value="1989">1989</option>
<option value="1988">1988</option>
<option value="1987">1987</option>
<option value="1986">1986</option>
<option value="1985">1985</option>
<option value="1984">1984</option>
<option value="1983">1983</option>
<option value="1982">1982</option>
<option value="1981">1981</option>
<option value="1980">1980</option>
<option value="1979">1979</option>
<option value="1978">1978</option>
<option value="1977">1977</option>
<option value="1976">1976</option>
<option value="1975">1975</option>
<option value="1974">1974</option>
<option value="1973">1973</option>
<option value="1972">1972</option>
<option value="1971">1971</option>
<option value="1970">1970</option>
<option value="1969">1969</option>
<option value="1968">1968</option>
<option value="1967">1967</option>
<option value="1966">1966</option>
<option value="1965">1965</option>
<option value="1964">1964</option>
<option value="1963">1963</option>
<option value="1962">1962</option>
<option value="1961">1961</option>
<option value="1960">1960</option>
<option value="1959">1959</option>
<option value="1958">1958</option>
<option value="1957">1957</option>
<option value="1956">1956</option>
<option value="1955">1955</option>
<option value="1954">1954</option>
<option value="1953">1953</option>
<option value="1952">1952</option>
<option value="1951">1951</option>
<option value="1950">1950</option>
<option value="1949">1949</option>
<option value="1948">1948</option>
<option value="1947">1947</option>
<option value="1946">1946</option>
<option value="1945">1945</option>
<option value="1944">1944</option>
<option value="1943">1943</option>
<option value="1942">1942</option>
<option value="1941">1941</option>
<option value="1940">1940</option>
<option value="1939">1939</option>
<option value="1938">1938</option>
<option value="1937">1937</option>
<option value="1936">1936</option>
<option value="1935">1935</option>
<option value="1934">1934</option>
<option value="1933">1933</option>
<option value="1932">1932</option>
<option value="1931">1931</option>
<option value="1930">1930</option>
<option value="1929">1929</option>
<option value="1928">1928</option>
<option value="1927">1927</option>
<option value="1926">1926</option>
<option value="1925">1925</option>
<option value="1924">1924</option>
<option value="1923">1923</option>
<option value="1922">1922</option>
<option value="1921">1921</option>
<option value="1920">1920</option>
<option value="1919">1919</option>
</select>
</div>
</div>
<p id="signup-BirthdayInputValidation" class="form-control-label input-validation text-error ng-binding" ng-bind="getBirthdayInvalidMessage()"></p>
</div>
</div>
有没有一种方法可以将其放到单击下拉菜单以打开它的位置，然后单击我想要的选项？还是至少将其带到选择选项的位置并实际上保存选择而不是显示选择，并且基本上是检查元素？