Question

我是bootstrap的新手，我正在使用bootstrap 3.如下图所示，我想要标签（？）“Name”，“Email Address”，“Phone Number”和“Message”to是白色而不是深灰色。

这是我的HTML：

<section class="success" id="contact">
    <div class="container">
        <div class="row">
            <div class="col-lg-12 text-center">
                <h2>Contact Me</h2>
                <hr class="star-light">
            </div>
        </div>
        <div class="row">
            <div class="col-lg-8 col-lg-offset-2">
                <!-- To configure the contact form email address, go to mail/contact_me.php and update the email address in the PHP file on line 19. -->
                <!-- The form should work on most web servers, but if the form is not working you may need to configure your web server differently. -->
                <form name="sentMessage" id="contactForm" novalidate>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Name</label>
                            <input type="text" class="form-control" placeholder="Name" id="name" required data-validation-required-message="Please enter your name.">
                            <p class="help-block text-default"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Email Address</label>
                            <input type="email" class="form-control" placeholder="Email Address" id="email" required data-validation-required-message="Please enter your email address.">
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Phone Number</label>
                            <input type="tel" class="form-control" placeholder="Phone Number" id="phone" required data-validation-required-message="Please enter your phone number.">
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Message</label>
                            <textarea rows="5" class="form-control" placeholder="Message" id="message" required data-validation-required-message="Please enter a message."></textarea>
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <br>
                    <div id="success"></div>
                    <div class="row">
                        <div class="form-group col-xs-12">
                            <button type="submit" class="btn btn-success btn-lg">Send</button>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
</section>

我有一个自定义的css文件，但不知道css代码，使“名称”，“电子邮件地址”，“电话号码”和“消息”为白色而不是灰色。

.floating-label-form-group {
  position: relative;
  margin-bottom: 0;
  padding-bottom: 0.5em;
  border-bottom: 1px solid #eeeeee;
}
.floating-label-form-group input,
.floating-label-form-group textarea {
  z-index: 1;
  position: relative;
  padding-right: 0;
  padding-left: 0;
  border: none;
  border-radius: 0;
  font-size: 1.5em;
  background: none;
  box-shadow: none !important;
  resize: none;
}
.floating-label-form-group label {
  display: block;
  z-index: 0;
  position: relative;
  top: 2em;
  margin: 0;
  font-size: 0.85em;
  line-height: 1.764705882em;
  vertical-align: middle;
  vertical-align: baseline;
  opacity: 0;
  -webkit-transition: top 0.3s ease,opacity 0.3s ease;
  -moz-transition: top 0.3s ease,opacity 0.3s ease;
  -ms-transition: top 0.3s ease,opacity 0.3s ease;
  transition: top 0.3s ease,opacity 0.3s ease;
}
.floating-label-form-group:not(:first-child) {
  padding-left: 14px;
  border-left: 1px solid #eeeeee;
}
.floating-label-form-group-with-value label {
  top: 0;
  opacity: 1;
}
.floating-label-form-group-with-focus label {
  color: #18BC9C;
 }

非常感谢任何帮助。

干杯，

Answer 1

您可以将白色应用于标签，如下所示

form label{
  color: #fff;
}

在此处查看工作fiddle

Answer 2

这不是标签，而是输入的占位符

所以，你需要用css设置占位符：

.floating-label-form-group textarea::-webkit-input-placeholder,
.floating-label-form-group  input::-webkit-input-placeholder { color: #fff; }
.floating-label-form-group textarea:-moz-placeholder ,
.floating-label-form-group  input:-moz-placeholder { /* Firefox 18- */ color: #fff; }
.floating-label-form-group  textarea::-moz-placeholder,
.floating-label-form-group  input::-moz-placeholder {  /* Firefox 19+ */ color: #fff; }
.floating-label-form-group  textarea:-ms-input-placeholder,
.floating-label-form-group  input:-ms-input-placeholder {   color: #fff; }

工作Fiddel：https://jsfiddle.net/DTcHh/27294/

Answer 3

您需要更新占位符文本的颜色，就像正在显示的颜色一样。

链接到小提琴：https://jsfiddle.net/DTcHh/27309/

CSS

 /*This changes your placeholder text to white*/
.form-control::-webkit-input-placeholder { color: white; }
.form-control:-moz-placeholder { color: white; }
.form-control::-moz-placeholder { color: white; }
.form-control:-ms-input-placeholder { color: white; }

如果您确实需要标签，可以在h3 .control-group内添加div标记，然后将其定位为

/*This changes the h3 tag above your placeholder text*/
.control-group h3 {
  color: #fff;
}

这将为您提供上面使用您的代码的小提琴中显示的结果。

Bootstrap - 如何格式化表单中的标签颜色

3 个答案: