Question

我想制作一个特定的网格。但它不应该用flexbox，网格或表格来实现。只应使用浮动。我已经完成了代码。它应该只是更改，以便代码中没有！important 并且行为方式相同。如果删除！important并调整浏览器窗口的大小，则会看到不同的行为。

这是我的代码：

＆＃13;

/* === General === */

.clearfix::after {
  content: "";
  display: block;
  clear: both;
}

.container {
  max-width: 1328px;
  margin: 3rem auto;
}

/* === Grid === */

.row {
  padding-bottom: 2rem;
}

.row .square:nth-of-type(3) {
  margin-left: 30px;
}

.row .square:nth-of-type(1) {
  margin-right: 30px;
}

.square {
  width: calc((100% - 60px) / 3);
  float: left;
  max-width: 428px;
}

.square::before {
  display: block;
  content: "";
  width: 100%;
  padding-top: 100%;
  background-color: grey;
}

.rectangle {
  width: calc((100% - 60px) / 3 * 2 + 30px);
  float: left;
  margin-right: 30px;
}

.rectangle::before {
  display: block;
  content: "";
  width: 100%;
  padding-top: 48.28375%;
  background-color: #e95d0e;
}

@media (max-width: 991px) {
  .row {
    padding-bottom: 0;
  }
  .square {
    float: none;
    margin-right: auto !important;
    margin-left: auto !important;
    margin-bottom: 2rem;
    width: 100%;
    max-width: 370px;
  }
  .rectangle {
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 2rem;
    float: none;
    width: 100%;
    max-width: 370px;
  }
  .rectangle::before {
    padding-top: 100%;
  }
}

＆＃13;

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <title></title>
  <link rel="stylesheet" type="text/css" href="src/css/styles.css">
</head>

<body>
  <div class="container">
    <section id="topics">
      <div class="row clearfix">
        <div class="square"></div>
        <div class="square"></div>
        <div class="square"></div>
      </div>
      <div class="row clearfix">
        <div class="rectangle"></div>
        <div class="square"></div>
      </div>
    </section>
  </div>
</body>

</html>

＆＃13;

Answer 1

因此，您可以指定css的更高后代级别，例如：

#topics .square

这意味着#topics .square＆gt; .row .square:nth-of-type(*)，据说#topics .square会覆盖.row .square:nth-of-type(*)参数......所以，不需要！important

请参阅：https://developer.mozilla.org/en-US/docs/Web/CSS/Descendant_selectors

＆＃13;

/* === General === */

.clearfix::after {
  content: "";
  display: block;
  clear: both;
}

.container {
  max-width: 1328px;
  margin: 3rem auto;
}


/* === Grid === */
.row {
  padding-bottom: 2rem;
}

.row .square:nth-of-type(3) {
 margin-left: 30px;
}

 .row .square:nth-of-type(1) {
  margin-right: 30px;
}

.square {
  width: calc((100% - 60px) / 3);
  float: left;
  max-width: 428px;
}

.square::before {
  display: block;
  content: "";
  width: 100%;
  padding-top: 100%;
  background-color: grey;
}

.rectangle {
  width: calc((100% - 60px) / 3 * 2 + 30px);
  float: left;
  margin-right: 30px;
}

.rectangle::before {
  display: block;
  content: "";
  width: 100%;
  padding-top: 48.28375%;
  background-color: #e95d0e;
}

@media (max-width: 991px) {

  .row {
    padding-bottom: 0;
  }

  #topics .square {
    float: none;
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 2rem;
    width: 100%;
    max-width: 370px;
  }

  .rectangle {
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 2rem;
    float: none;
    width: 100%;
    max-width: 370px;
  }

  .rectangle::before {
    padding-top: 100%;
  }

}

＆＃13;

<!DOCTYPE html>
<html lang="en">

	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="src/css/styles.css">
	</head>

	<body>
    <div class="container">

      <section id="topics">


        <div class="row clearfix">
          <div class="square"></div>
          <div class="square"></div>
          <div class="square"></div>
        </div>

        <div class="row clearfix">
          <div class="rectangle"></div>
          <div class="square"></div>
        </div>
		
      </section>

    </div>
	</body>

</html>

＆＃13;

如何在不使用！important且仅使用float的情况下制作特定网格

1 个答案: