如何在带有阴影的窗体上制作三角形？

debugcn 发表于 Dev

马里克·扎克（Marik Zuckor）

如您所见，表单的左侧和右侧都有三角形。和双阴影0 0 0 2px，0 0 0 6px。我已经使用：after和：before实现了此功能，但是它破坏了布局。如果可以帮助我，请帮助。我很高兴能解决此问题的任何链接或文章

https://jsfiddle.net/BeriaFantom/sLkdy0fx/1/

#middle {
  position: relative;
}
#middle-form {
  position: absolute;
  bottom: 0;
  right: 0;
  left: 0;
}
#middle-form:after,
#middle-form:before {
  position: absolute;
  top: 0;
  display: block;
  content: '';
  width: 0;
  height: 0;
}
#middle-form::after {
  right: -24px;
  border-bottom: 75px solid transparent;
  border-top: 75px solid transparent;
  border-left: 24px solid #1e9baf;
}
#middle-form::before {
  left: -24px;
  border-bottom: 75px solid transparent;
  border-top: 75px solid transparent;
  border-right: 24px solid #1e9baf;
}

<div id="middle">

  <div id="middle-form" class='container'>
    <h2>заказать мастера</h2>
    <form action="" class='clear'>
      <input type="text" class='name'>
      <input type="tel" class='tel'>
      <button class="btn-sen">отправить</button>
    </form>
  </div>
</div>

丹麦阿黛尔

我对您的提琴进行了更改，请立即检查。

body {background: black;}
#middle {position: relative; width: 300px; margin-left: 100px; box-shadow: 0 0 10px 2px #ccc;}
#middle-form {background: #1e9baf none repeat scroll 0 0; height: 128px; position: relative; z-index: 100; border:2px solid #fff; border-width:2px 0;}
#middle:after, #middle:before {background: #1e9baf none repeat scroll 0 0; box-shadow: 0 0 10px 2px #ccc; content: ""; display: block; height: 90px; position: absolute; top: 19px; transform: rotate(45deg); width: 90px; z-index: 10; border:2px solid #fff;}
#middle::after {right: -48px;}
#middle::before {left: -48px;}

<div id="middle">
    <div id="middle-form" class='container'>
        <h2>заказать мастера</h2>
        <form action="" class='clear'>
            <input type="text" class='name'>
            <input type="tel" class='tel'>
            <button class="btn-sen">отправить</button>
        </form>
    </div>
</div>

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