お問合せフォーム

HTMLフォームを作成

HTML記述例

<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width">
<title>お問合せフォーム</title>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div class="container">
<h1>お問い合わせ</h1>
<p>お気軽にお問い合わせください。</p>
<form
  method="post" 
  target="hidden_iframe"
  onsubmit="submitted=true;"
  class="form">
  <div class="form__item">
    <label class="form__label" for="field-name"
      >名前<span class="form__required">必須</span></label
    >
    <input
      class="form__input"
      id="field-name"
      placeholder="田中"
      type="text"
      required="required"
    />
  </div>
  <div class="form__item">
    <label class="form__label" for="field-mail"
      >メールアドレス<span class="form__required">必須</span></label
    >
    <input
      class="form__input"
      id="field-mail"
      placeholder="sample@gmail.com"
      type="email"
      required="required"
    />
  </div>
  <div class="form__item">
    <label class="form__label" for="field-message">お問い合わせ内容</label>
    <textarea
      class="form__input"
      id="field-message"
      placeholder="お問い合わせ内容"
    ></textarea>
  </div>
  <div class="form__submit">
    <button type="submit">送信する</button>
  </div>
</form>
</div><!-- /.container -->
</body>
</html>

CSS記述例

@charset "UTF-8";

/* -------------------------------------------
  reset
------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul, li {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  vertical-align: bottom;
}


/* ------------------------------------------
  body
------------------------------------------- */
body {
  color: #333;
  font-size: 16px;
  font-family: 
    "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    Meiryo,
    sans-serif;
  line-height: 1.0;
}


/* ------------------------------------------
  layout
------------------------------------------- */
.container {
	width: min(96%, 960px);
	margin: 40px auto 0;
}
h1 {
  text-align: center;
}
p {
	margin: 20px 0 30px;
	text-align: center;
}


/* ------------------------------------------
  form
------------------------------------------- */
.c-form {
	max-width: 600px;
	margin: 0 auto;
}
  .c-form__item {
    display: flex;
    flex-wrap: wrap;
    /* justify-content: space-evenly; */
    margin-bottom: 20px;
  }
  .c-form__label,
  .c-form__input {
    padding: 10px;
  }
  .c-form__label {
    width: 100%;
  }
  .c-form__input {
    width: 100%;
    font-size: 16px;
    border: solid 1px #333;
    border-radius: 4px;
  }
  .c-form__input:focus-visible {
    outline: rgb(30, 117, 161); auto 1px;
  }
  .c-form__required {
    background-color: rgb(255, 0, 0);
    border-radius: 4px;
    padding: 1px 4px;
    margin-left: 10px;
    color: #fff;
    font-size: 12px;
  }
  textarea.c-form__input {
    height: 160px;
  }
  .c-form__submit {
    text-align: center;
  }
  .c-form__submit button {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
    background-color: rgb(3, 96, 189);
    border: 0;
    border-radius: 4px;
    padding: 5px 32px;
    transition: 0.4s;
    cursor: pointer;
  }
  .c-form__submit button:hover {
    color: rgb(255, 255, 255);
    background-color: rgb(255, 0, 0);
  }

@media (min-width: 640px) {
  .c-form__item {
    flex-wrap: nowrap;
  }
  .c-form__label {
    width: 30%;
  }
  .c-form__input {
    width: 70%;
  }
}