CSS样式阻止表单提交按钮出现

如何解决CSS样式阻止表单提交按钮出现

我正在尝试改编https://codepen.io/hesguru/pen/BaybqXv中的代码，以创建一个带有提交按钮的反应性星级表，该按钮可以传递给我的python后端。但是，我无法显示“提交”按钮，我知道这可能是由于CSS导致的，但是还无法解决该问题。 (This is how it currently appears)如何使“提交”按钮出现并起作用？

.rate {
    float: left;
    height: 46px;
    padding: 0 10px;
}
.rate:not(:checked) > input {
    position:absolute;
    top:-9999px;
}
.rate:not(:checked) > label {
    float:right;
      overflow:hidden;
    white-space:Nowrap;
    cursor:pointer;
    font-size:30px;
    color:#ccc;
}
.rate:not(:checked) > label:before {
    content: '★ ';
}
.rate > input:checked ~ label {
    color: #ffc700;
}
.rate:not(:checked) > label:hover,.rate:not(:checked) > label:hover ~ label {
    color: #deb217;
}
.rate > input:checked + label:hover,.rate > input:checked + label:hover ~ label,.rate > input:checked ~ label:hover,.rate > input:checked ~ label:hover ~ label,.rate > label:hover ~ input:checked ~ label {
    color: #c59b08;
} width:1em;

<form action="/r" method="POST" class="rate">
    <input type="radio" id="star5" name="rate" value="5" />
    <label for="star5" title="5">5 stars</label>
    <input type="radio" id="star4" name="rate" value="4" />
    <label for="star4" title="4">4 stars</label>
    <input type="radio" id="star3" name="rate" value="3" />
    <label for="star3" title="3">3 stars</label>
    <input type="radio" id="star2" name="rate" value="2" />
    <label for="star2" title="2">2 stars</label>
    <input type="radio" id="star1" name="rate" value="1" />
    <label for="star1" title="1">1 star</label>
    <input type="submit" id="sub" value="Submit">
</form>

解决方法

您描述的问题是由以下选择器引起的：

.rate:not(:checked)>input

这将在<input> .rate元素中选择 all 个<form>元素（其本身永远不会与:checked伪类匹配） ，而不考虑<input>的类型。

如果将该行修改为以下内容：

.rate > input[type=radio]

然后，它将仅匹配与<input>匹配的type="radio"个元素；并删除（完全无意义的伪类）：:not(:checked)，因为<form>元素可以-并且应该-永远不会匹配该选择器：

.rate {
  float: left;
  height: 46px;
  padding: 0 10px;
}

.rate > input[type=radio] {
  position: absolute;
  top: -9999px;
}

.rate:not(:checked)>label {
  float: right;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  font-size: 30px;
  color: #ccc;
}

.rate:not(:checked)>label:before {
  content: '★ ';
}

.rate>input:checked~label {
  color: #ffc700;
}

.rate:not(:checked)>label:hover,.rate:not(:checked)>label:hover~label {
  color: #deb217;
}

.rate>input:checked+label:hover,.rate>input:checked+label:hover~label,.rate>input:checked~label:hover,.rate>input:checked~label:hover~label,.rate>label:hover~input:checked~label {
  color: #c59b08;
  width: 1em;
}

<form action="/r" method="POST" class="rate">
  <input type="radio" id="star5" name="rate" value="5" />
  <label for="star5" title="5">5 stars</label>
  <input type="radio" id="star4" name="rate" value="4" />
  <label for="star4" title="4">4 stars</label>
  <input type="radio" id="star3" name="rate" value="3" />
  <label for="star3" title="3">3 stars</label>
  <input type="radio" id="star2" name="rate" value="2" />
  <label for="star2" title="2">2 stars</label>
  <input type="radio" id="star1" name="rate" value="1" />
  <label for="star1" title="1">1 star</label>
  <input type="submit" id="sub" value="Submit">
</form>