聯系表格輸入影片錯誤-有解無憂

我最近問了一個關于聯系表單影片的問題（單擊框時標簽文本向上移動），雖然我讓影片正常作業，但我遇到了一個錯誤：

當我單擊第一個和第二個框（由于某種原因不是第三個框）時，它會激活其余框的影片，這很煩人。

我怎樣才能得到它，以便在單擊一個框時，它只影片我單擊的框而不是其余的？

<div class="contact-col"  style="position:relative display:inline;" >

        <input type="text" name="name" required>
         <span id="floating-label">Yourname</span>

        <input type="email" name="email" required>
        <span id="floating-label-1">Your email</span>
                    
        <input type="text"  name="subject"  required>
        <span id="floating-label-2">Subject</span>
</div>

.contact-col input, .contact-col textarea{
    width: 100%;
    padding: 15px;
    margin-bottom: 25px;
    outline: none;
    font-family: 'Merriweather Sans', sans-serif;
    font-weight: 300;
    font-size: 16px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}



.contact-col input:focus, .contact-col textarea:focus {
    border: 1px solid yellowgreen;
    box-shadow: 0 0 0 1px #8C7D50;
    transition: 25ms box-shadow ease-in-out;
}




 input:focus ~ #floating-label,
    input:not(:focus):valid ~ #floating-label{
        top: -0.5%;
        left: 0.5rem;
        padding: 0.5rem;
        font-size: 14px;
        color: #8C7D50 ;
        font-weight: 400;
        transition: 0.2s ease-in-out;
     
    }

    #floating-label {
        font-family: 'Merriweather Sans', sans-serif;
        font-weight: 300;
        font-size: 16px;
        position: absolute;
        pointer-events: none;
        left: 1rem;
        transform: translateY(-50%);
        top: 4.5%;
        color: #777;
        background: white;
        transition: 0.2s ease all;
    }



    #floating-label-1{
        font-family: 'Merriweather Sans', sans-serif;
        font-weight: 300;
        font-size: 16px;
        position: absolute;
        pointer-events: none;
        left: 1rem;
        transform: translateY(-50%);
        top: 19%;
        color: #777;
        background: white;
        transition: 0.2s ease all;
    }



input:focus ~ #floating-label-1,
    input:not(:focus):valid ~ #floating-label-1{
        top: 14.25%;
        left: 0.5rem;
        padding: 0.5rem;
        font-size: 14px;
        color: #8C7D50 ;
        font-weight: 400;
        transition: 0.2s ease-in-out;
    }




 #floating-label-2{
        font-family: 'Merriweather Sans', sans-serif;
        font-weight: 300;
        font-size: 16px;
        position: absolute;
        pointer-events: none;
        left: 1rem;
        transform: translateY(-50%);
        top: 33.5%;
        color: #777;
        background: white;
        transition: 0.2s ease all;
    }



input:focus ~ #floating-label-2,
    input:not(:focus):valid ~ #floating-label-2{
        top: 28.5%;
        left: 0.5rem;
        padding: 0.5rem;
        font-size: 14px;
        color: #8C7D50 ;
        font-weight: 400;
        transition: 0.2s ease-in-out;
    }

uj5u.com熱心網友回復：

這是一個問題，因為您沒有明確選擇輸入。因此，如果您按名稱選擇輸入，問題將得到解決。


.contact-col input,
.contact-col textarea {
  width: 100%;
  padding: 15px;
  margin-bottom: 25px;
  outline: none;
  font-family: 'Merriweather Sans', sans-serif;
  font-weight: 300;
  font-size: 16px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

.contact-col input:focus,
.contact-col textarea:focus {
  border: 1px solid yellowgreen;
  box-shadow: 0 0 0 1px #8c7d50;
  transition: 25ms box-shadow ease-in-out;
}

input[name='name']:focus ~ #floating-label,
input[name='name']:not(:focus):valid ~ #floating-label {
  top: -0.5%;
  left: 0.5rem;
  padding: 0.5rem;
  font-size: 14px;
  color: #8c7d50;
  font-weight: 400;
  transition: 0.2s ease-in-out;
}

#floating-label {
  font-family: 'Merriweather Sans', sans-serif;
  font-weight: 300;
  font-size: 16px;
  position: absolute;
  pointer-events: none;
  left: 1rem;
  transform: translateY(-50%);
  top: 4.5%;
  color: #777;
  background: white;
  transition: 0.2s ease all;
}

#floating-label-1 {
  font-family: 'Merriweather Sans', sans-serif;
  font-weight: 300;
  font-size: 16px;
  position: absolute;
  pointer-events: none;
  left: 1rem;
  transform: translateY(-50%);
  top: 19%;
  color: #777;
  background: white;
  transition: 0.2s ease all;
}

input[name='email']:focus ~ #floating-label-1,
input[name='email']:not(:focus):valid ~ #floating-label-1 {
  top: 14.25%;
  left: 0.5rem;
  padding: 0.5rem;
  font-size: 14px;
  color: #8c7d50;
  font-weight: 400;
  transition: 0.2s ease-in-out;
}

#floating-label-2 {
  font-family: 'Merriweather Sans', sans-serif;
  font-weight: 300;
  font-size: 16px;
  position: absolute;
  pointer-events: none;
  left: 1rem;
  transform: translateY(-50%);
  top: 33.5%;
  color: #777;
  background: white;
  transition: 0.2s ease all;
}

input[name='subject']:focus ~ #floating-label-2,
input[name='subject']:not(:focus):valid ~ #floating-label-2 {
  top: 28.5%;
  left: 0.5rem;
  padding: 0.5rem;
  font-size: 14px;
  color: #8c7d50;
  font-weight: 400;
  transition: 0.2s ease-in-out;
}

uj5u.com熱心網友回復：

問題

當前，當任何輸入值集中或有效時，您正在向上移動所有浮動標簽。

input:focus ~ #floating-label,
input:not(:focus):valid ~ #floating-label{
  //...
}

解決方案

input-field-X要解決這個問題，您可以在輸入標簽中添加相同的 id 或類似的東西。不過，這對您的 css 來說并不是很好，因為它必須是可重復的并且它會快速增長。所以我只會創建一個<div vertical-align: inherit;">里面有標簽和輸入欄位的地方。這使得標簽的定位和影片方式更容易，因為您可以從 div 絕對定位它。


  <div class="contact-col">
    <div class="input-field">
      <input type="text" name="name" required>
      <label for="name">Your name</label>
    </div>
    <div class="input-field">
      <input type="text" name="email" required>
      <label for="name">Your email</label>
    </div>
    <div class="input-field">
      <input type="text" name="subject" required>
      <label for="name">Subject</label>
    </div>
  </div>

我還稍微修復了你的 CSS。
html,
body {
  margin: 0;
}
body * {
  box-sizing: border-box;
}

.input-field {
  --input-field-height: 50px;
  --input-field-padding-left: 10px;
  position: relative; /* this is important for the positioning of the label*/
  width: 600px;
  height: var(--input-field-height);
  margin: 15px;
}

.input-field input {
  transition: 25ms box-shadow ease-in-out;
  width: 100%;
  height: 100%;
  padding-left: var(--input-field-padding-left);
}

.input-field label {
  position: absolute;
  top: calc(var(--input-field-height) / 2);
  transform: translateY(-50%);
  left: 20px;
  font-family: "Merriweather Sans", sans-serif;
  font-weight: 300;
  font-size: 16px;
  pointer-events: none;
  color: #777;
  background: white;
  transition: 0.2s ease all;
}
.input-field input:focus ~ label,
.input-field input:not(:focus):valid ~ label {
  top: 0;
  left: var(--input-field-padding-left);
  color: #8c7d50;
}

.input-field input:focus {
  outline: 1px solid yellowgreen; /* using outline istead of the border doesn't change the size of the input field */
  box-shadow: 0 0 0 1px #8c7d50;
}

這是jsfiddle。
如果您有任何問題，請不要害怕提問。
    





        
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