html - Material Design Lite 表单按钮不提交任何内容

Question

我是 CSS 的新手，可能会错过一些基本的东西。我从 Material Design Lite 的教程站点获取 HTML 表单的代码，但它不发送任何 HTTP 请求。

我错过了什么？

<div class="mdl-layout mdl-js-layout mdl-color--grey-100">
    <main class="mdl-layout__content">
        <div class="mdl-card mdl-shadow--6dp">
            <div class="mdl-card__title mdl-color--primary mdl-color-text--white">
                <h2 class="mdl-card__title-text">Acme Co.</h2>
            </div>
        <div class="mdl-card__supporting-text">
                <form action="foo.html">
                    <div class="mdl-textfield mdl-js-textfield">
                        <input class="mdl-textfield__input" type="text" id="username" />
                        <label class="mdl-textfield__label" for="username">Username</label>
                    </div>
                    <div class="mdl-textfield mdl-js-textfield">
                        <input class="mdl-textfield__input" type="password" id="userpass" />
                        <label class="mdl-textfield__label" for="userpass">Password</label>
                    </div>
                </form>
            </div>
            <div class="mdl-card__actions mdl-card--border">
                <button class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect">Log in</button>
            </div>
        </div>
    </main>
</div>

Answer 1

把你的 <Button>里面<form></form>标签。

像这样:

<div class="mdl-layout mdl-js-layout mdl-color--grey-100">
    <main class="mdl-layout__content">
        <div class="mdl-card mdl-shadow--6dp">
            <div class="mdl-card__title mdl-color--primary mdl-color-text--white">
                <h2 class="mdl-card__title-text">Acme Co.</h2>
            </div>
        <div class="mdl-card__supporting-text">
                <form action="foo.html">
                    <div class="mdl-textfield mdl-js-textfield">
                        <input class="mdl-textfield__input" type="text" id="username" />
                        <label class="mdl-textfield__label" for="username">Username</label>
                    </div>
                    <div class="mdl-textfield mdl-js-textfield">
                        <input class="mdl-textfield__input" type="password" id="userpass" />
                        <label class="mdl-textfield__label" for="userpass">Password</label>
                    </div>
                    <div class="mdl-card__actions mdl-card--border">
                        <button class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" type="submit" name="login">Log in</button>
                    </div>
                </form>
            </div>
        </div>
    </main>
</div>