Question

在文本已经出现之后，我的输入与其占位符上的文本重叠。

此表单的我的HTML：

<form action="./includes/login.inc.php" method="post">
    <div class="group">
        <input type="text" name="emailuid"/><span class="highlight"></span><span class="bar"></span>
        <label>Email</label>
    </div>
    <div class="group">
        <input type="password" name="pwduid"/><span class="highlight"></span><span class="bar"></span>
        <label>Password</label>
    </div>
    <div class="btn-box">
        <button class="btn btn-submit" type="submit" name="login-submit">Sign in</button>
    </div>
</form>

这是我的样式表，仅用于此表单而已：

form {
  width: 320px;
  margin: 45px auto;

}
form h1 {
  font-size: 3em;
  font-weight: 300;
  text-align: center;
  color: #2196F3;
}
form h5 {
  text-align: center;
  text-transform: uppercase;
  color: #c6c6c6;
}
form hr.sep {
  background: #2196F3;
  box-shadow: none;
  border: none;
  height: 2px;
  width: 25%;
  margin: 0px auto 45px auto;
}
form .emoji {
  font-size: 1.2em;
}

.group {
  position: relative;
  margin: 45px 0;
}

textarea {
  resize: none;
}

input,
textarea {
  background: none;
  color: #4F4F4F;
  font-size: 18px;
  padding: 10px 10px 10px 5px;
  display: block;
  width: 320px;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid #4F4F4F;
}
input:focus,
textarea:focus {
  outline: none;
}
input:focus ~ label,
textarea:focus ~ label {
  top: -14px;
  font-size: 12px;
  color: #FF3B3F;
}
input:focus ~ .bar:before,
textarea:focus ~ .bar:before {
  width: 335px;
}

input[type="password"] {
  letter-spacing: 0.3em;
}

label {
  color: #4F4F4F;
  font-size: 16px;
  font-weight: normal;
  position: absolute;
  pointer-events: none;
  left: 5px;
  top: 10px;
  -webkit-transition: 300ms ease all;
  transition: 300ms ease all;
}

.bar {
  position: relative;
  display: block;
  width: 320px;
}
.bar:before {
  content: '';
  height: 2px;
  width: 0;
  bottom: 0px;
  position: absolute;
  background: #FF3B3F;
  -webkit-transition: 300ms ease all;
  transition: 300ms ease all;
  left: 0%;
}

.btn {
  background: #fff;
  color: #959595;
  border: none;
  padding: 10px 20px;
  border-radius: 3px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  outline: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  -webkit-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.btn:hover {
  color: #752021;
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.18), 0 5px 5px rgba(0, 0, 0, 0.12);
}
.btn.btn-link {
  background: #FF3B3F;
  color: #d3eafd;
}
.btn.btn-link:hover {
  background: #0d8aee;
  color: #deeffd;
}
.btn.btn-submit {
  background: #FF3B3F;
  color: white;
}
.btn.btn-submit:hover {
  background: #752021;
  color: white;
}
.btn.btn-cancel {
  background: #eee;
}
.btn.btn-cancel:hover {
  background: #e1e1e1;
  color: #8b8b8b;
}

.btn-box {
  text-align: center;
  margin: 50px 0;
}

为清楚起见，当您从框中取消选择时，我希望它看起来像底部的“密码”字段。在输入上方的文本向下移至底部，并在取消选择时与之重叠。

感谢您的帮助。

Answer 1

您可以使用jQuery .focus()和。blur()函数来实现。首先，以标签的 focused 样式创建一个类。在输入焦点上检查它是否具有某些值。如果它具有focused类，请删除它。检查下面的代码：

css

label.focused {
    top: -14px;
  font-size: 12px;
  color: #FF3B3F;
}

jQuery

$('input').focus(function() {
  $(this).siblings('label').addClass('focused');
}).blur(function () {
  if($(this).val().length == 0) {
    $(this).siblings('label').removeClass('focused');
  }
});

完整代码

$('input').focus(function() {
  $(this).siblings('label').addClass('focused');
}).blur(function () {
  if($(this).val().length == 0) {
    $(this).siblings('label').removeClass('focused');
  }
});

form {
  width: 320px;
  margin: 45px auto;

}
form h1 {
  font-size: 3em;
  font-weight: 300;
  text-align: center;
  color: #2196F3;
}
form h5 {
  text-align: center;
  text-transform: uppercase;
  color: #c6c6c6;
}
form hr.sep {
  background: #2196F3;
  box-shadow: none;
  border: none;
  height: 2px;
  width: 25%;
  margin: 0px auto 45px auto;
}
form .emoji {
  font-size: 1.2em;
}

.group {
  position: relative;
  margin: 45px 0;
}

textarea {
  resize: none;
}

input,
textarea {
  background: none;
  color: #4F4F4F;
  font-size: 18px;
  padding: 10px 10px 10px 5px;
  display: block;
  width: 320px;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid #4F4F4F;
}
input:focus,
textarea:focus {
  outline: none;
}
/*input:focus ~ label,
textarea:focus ~ label {
  top: -14px;
  font-size: 12px;
  color: #FF3B3F;
}*/

label.focused {
    top: -14px;
  font-size: 12px;
  color: #FF3B3F;
}

input:focus ~ .bar:before,
textarea:focus ~ .bar:before {
  width: 335px;
}

input[type="password"] {
  letter-spacing: 0.3em;
}

label {
  color: #4F4F4F;
  font-size: 16px;
  font-weight: normal;
  position: absolute;
  pointer-events: none;
  left: 5px;
  top: 10px;
  -webkit-transition: 300ms ease all;
  transition: 300ms ease all;
}

.bar {
  position: relative;
  display: block;
  width: 320px;
}
.bar:before {
  content: '';
  height: 2px;
  width: 0;
  bottom: 0px;
  position: absolute;
  background: #FF3B3F;
  -webkit-transition: 300ms ease all;
  transition: 300ms ease all;
  left: 0%;
}

.btn {
  background: #fff;
  color: #959595;
  border: none;
  padding: 10px 20px;
  border-radius: 3px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  outline: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  -webkit-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.btn:hover {
  color: #752021;
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.18), 0 5px 5px rgba(0, 0, 0, 0.12);
}
.btn.btn-link {
  background: #FF3B3F;
  color: #d3eafd;
}
.btn.btn-link:hover {
  background: #0d8aee;
  color: #deeffd;
}
.btn.btn-submit {
  background: #FF3B3F;
  color: white;
}
.btn.btn-submit:hover {
  background: #752021;
  color: white;
}
.btn.btn-cancel {
  background: #eee;
}
.btn.btn-cancel:hover {
  background: #e1e1e1;
  color: #8b8b8b;
}

.btn-box {
  text-align: center;
  margin: 50px 0;
}

<form action="./includes/login.inc.php" method="post">
    <div class="group">
        <input type="text" name="emailuid"/><span class="highlight"></span><span class="bar"></span>
        <label>Email</label>
    </div>
    <div class="group">
        <input type="password" name="pwduid"/><span class="highlight"></span><span class="bar"></span>
        <label>Password</label>
    </div>
    <div class="btn-box">
        <button class="btn btn-submit" type="submit" name="login-submit">Sign in</button>
    </div>
</form>


<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

占位符重叠在输入焦点上

1 个答案: