Modx Login Color Style

i use modx revolution 2.4 since some weeks and its login extra(plugin) to manage page permissions. Everything works fine, but there is a yellow background color in the html input tags of the login form that can't be styled by my css stylesheet. The color is also present on the regular modx login, so maby the style comes from an priorized stylesheet of modx.

i tried the following:

search the web
css style: input{ background: #fff !important;}
looking for priorized stylesheets in manager/templates/default/css/login.css and manager/templates/default/css/index.css
find stylesheets with the browser->view source code
add style directly to html input tag

but with no luck.

the html code of the login form looks as follows:

<div class="loginForm">
    <div class="loginMessage">[[+errors]]</div>
    <div class="loginLogin">
        <form class="loginLoginForm" action="[[~[[*id]]]]" method="post">
            <fieldset class="loginLoginFieldset">
                <legend class="loginLegend">[[+actionMsg]]</legend>
                <label class="loginUsernameLabel">[[%login.username]]
                    <input class="loginUsername" type="text" name="username" />
                </label>

                <label class="loginPasswordLabel">[[%login.password]]
                    <input class="loginPassword" type="password" name="password" />
                </label>
                <input class="returnUrl" type="hidden" name="returnUrl" value="[[+request_uri]]"/>

                [[+login.recaptcha_html]]

                <input class="loginLoginValue" type="hidden" name="service" value="login"/>
                <span class="loginLoginButton"><input type="submit" name="Login" value="[[+actionMsg]]" /></span>
            </fieldset>
        </form>
    </div>
</div>

the css code part of my stylesheet looks like:

input{
    background: #fff !important;
    color: #000;
    font-size: 110%;
}

Solution

This yellow because autocomplite. How to disable - http://makandracards.com/makandra/24933-chrome-34+-firefox-38+-ie11+-ignore-autocomplete-off