拟态的密码提交表单，一个有品味的，高颜值的表单，

嗨嗨嗨！，上图

废话不多说，上代码！

<form class="form">
  <p class="heading">Verify</p>
  <svg class="check" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="60px" height="60px" viewBox="0 0 60 60" xml:space="preserve">  <image id="image0" width="60" height="60" x="0" y="0" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADwAAAA8CAQAAACQ9RH5AAAABGdBTUEAALGPC/xhBQAAACBjSFJN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=="></image>
</svg>
  <div class="box">
  <input class="input" type="password" maxlength="1">
  <input class="input" type="password" maxlength="1"> 
  <input class="input" type="password" maxlength="1">
  <input class="input" type="password" maxlength="1">
  </div>
  <button class="btn1">Submit</button>
  <button class="btn2">Back</button>
</form>

下面来波css代码！！！：

.form {
  width: 290px;
  height: 380px;
  display: flex;
  flex-direction: column;
  border-radius: 15px;
  background-color: white;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  transition: .4s ease-in-out;
}

.form:hover {
  box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.1);
  scale: 0.99;
}

.heading {
  position: relative;
  text-align: center;
  color: black;
  top: 3em;
  font-weight: bold;
}

.check {
  position: relative;
  align-self: center;
  top: 4em;
}

.input {
  position: relative;
  width: 2.5em;
  height: 2.5em;
  margin: 1em;
  border-radius: 5px;
  border: none;
  outline: none;
  background-color: rgb(235, 235, 235);
  box-shadow: inset 3px 3px 6px #d1d1d1,
            inset -3px -3px 6px #ffffff;
  top: 6.5em;
  left: 1.5em;
  padding-left: 15px;
  transition: .4s ease-in-out;
}

.input:hover {
  box-shadow: inset 0px 0px 0px #d1d1d1,
            inset 0px 0px 0px #ffffff;
  background-color: lightgrey;
}

.input:focus {
  box-shadow: inset 0px 0px 0px #d1d1d1,
            inset 0px 0px 0px #ffffff;
  background-color: lightgrey;
}

.btn1 {
  position: relative;
  top: 8.5em;
  left: 2.4em;
  width: 17em;
  height: 3em;
  border-radius: 5px;
  border: none;
  outline: none;
  transition: .4s ease-in-out;
  box-shadow: 1px 1px 3px #b5b5b5,
             -1px -1px 3px #ffffff;
}

.btn1:active {
  box-shadow: inset 3px 3px 6px #b5b5b5,
            inset -3px -3px 6px #ffffff;
}

.btn2 {
  position: relative;
  top: 9.5em;
  left: 2.4em;
  width: 17em;
  height: 3em;
  border-radius: 5px;
  border: none;
  outline: none;
  transition: .4s ease-in-out;
  box-shadow: 1px 1px 3px #b5b5b5,
             -1px -1px 3px #ffffff;
}

.btn2:active {
  box-shadow: inset 3px 3px 6px #b5b5b5,
            inset -3px -3px 6px #ffffff;
}

大功告成