Question

这就是问题所在。

我希望那些Mobile和brand names在另一个之下。

＆＃13;

* {
  padding: 0px;
  margin: 0px;
}

.Heading {
  font-family: tahoma;
  width: auto;
  height: 190px;
  color: white;
  font-weight: bolder;
  padding-top: 3%;
  padding-left: 2%;
}

.Nav {
  padding-top: 12px;
  padding-left: 390px;
  list-style: none;
  .
}

body {
  background: url("IMG2.jpg")no-repeat;
  background-size: 100%;
}

ul li {
  float: left;
  padding: 3.5%;
  width: 15%;
  background-color: black;
  opacity: .6;
  color: white;
  height: 2%;
  padding-top: 2%;
  margin-right: 2px;
  display: block;
}

ul li ul li {
  width: 150%;
  height: 900%;
  background: grey;
  opacity: .9;
  font-size: x-large;
  text-align: center;
  line-height: 40px;
  font-family: cursive;
  float: left;
  text-align: cente
}

#M {
  padding-top: 15%;
  padding-right: 30%;
}

＆＃13;

<!doctype>
<!DOCTYPE html>
<html>

<head>
  <title>Gadgets.info</title>
  <link rel="stylesheet" type="text/css" href="P2CSS.css">

  <body>
    <div class="Heading">
      <h1><u>
		Gadgets</u> <u>Info
	  </u> </h1>
      <ul>
        <li>
          Mobiles
          <div id="M">
            <ul>
              <li>Android</li>
              <li>Windows</li>
              <li>iOS</li>
            </ul>
          </div>
        </li>
        <li>
          Laptops
          <ul>
            <li>i3</li>
            <li>i5</li>
            <li>i7</li>
          </ul>
        </li>
        <li>
          Speakers
          <ul>
            <li>Bluetooth</li>
            <li>Wired</li>
          </ul>
        </li>
        <li>
          Others
        </li>
      </ul>
    </div>
</head>
</body>

</html>

＆＃13;

Answer 1

只需将一些css应用于子菜单，例如我的代码段

* {
  padding: 0px;
  margin: 0px;
}

.Heading {
  font-family: tahoma;
  width: auto;
  height: 190px;
  color: white;
  font-weight: bolder;
  padding-top: 3%;
  padding-left: 2%;
}

.Nav {
  padding-top: 12px;
  padding-left: 390px;
  list-style: none;
  .
}

body {
  background: url("IMG2.jpg")no-repeat;
  background-size: 100%;
}

ul li {
  float: left;
  padding: 3.5%;
  width: 15%;
  background-color: black;
  opacity: .6;
  color: white;
  height: 2%;
  padding-top: 2%;
  margin-right: 2px;
  display: block;
  position: relative;
}

ul li ul li {
  width: 100%;
  height: 900%;
  background: grey;
  opacity: .9;
  font-size: large;
  text-align: center;
  line-height: 40px;
  font-family: cursive;
  float: left;
  padding: 0;
}

#M {
  padding-top: 0;
  padding-right: 30%;
}

ul.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
}

<!doctype>
<!DOCTYPE html>
<html>

<head>
  <title>Gadgets.info</title>
  <link rel="stylesheet" type="text/css" href="P2CSS.css">
</head>

<body>
  <div class="Heading">
    <h1><u>
		Gadgets</u> <u>Info
	  </u> </h1>
    <ul>
      <li>
        Mobiles
        <div id="M">
          <ul class="submenu">
            <li>Android</li>
            <li>Windows</li>
            <li>iOS</li>
          </ul>
        </div>
      </li>
      <li>
        Laptops
        <ul class="submenu">
          <li>i3</li>
          <li>i5</li>
          <li>i7</li>
        </ul>
      </li>
      <li>
        Speakers
        <ul class="submenu">
          <li>Bluetooth</li>
          <li>Wired</li>
        </ul>
      </li>
      <li>
        Others
      </li>
    </ul>
  </div>
</body>

</html>

Answer 2

右移：0；也会解决问题。

* {
  padding: 0px;
  margin: 0px;
}

.Heading {
  font-family: tahoma;
  width: auto;
  height: 190px;
  color: white;
  font-weight: bolder;
  padding-top: 3%;
  padding-left: 2%;
}

.Nav {
  padding-top: 12px;
  padding-left: 390px;
  list-style: none;
  .
}

body {
  background: url("IMG2.jpg")no-repeat;
  background-size: 100%;
}

ul li {
  float: left;
  padding: 3.5%;
  width: 15%;
  background-color: black;
  opacity: .6;
  color: white;
  height: 2%;
  padding-top: 2%;
  margin-right: 2px;
  display: block;
  position: relative;
}

ul li ul li {
  width: 100%;
  height: 900%;
  background: grey;
  opacity: .9;
  font-size: large;
  text-align: center;
  line-height: 40px;
  font-family: cursive;
  float: left;
  padding: 0;
}

#M {
  padding-top: 0;
  padding-right: 30%;
}

ul.submenu {
  position: absolute;
  top: 100%;
  right: 0;
  width: 100%;
}

<!doctype>
<!DOCTYPE html>
<html>

<head>
  <title>Gadgets.info</title>
  <link rel="stylesheet" type="text/css" href="P2CSS.css">
</head>

<body>
  <div class="Heading">
    <h1><u>
        		Gadgets</u> <u>Info
        	  </u> </h1>
    <ul>
      <li>
        Mobiles
        <div id="M">
          <ul class="submenu">
            <li>Android</li>
            <li>Windows</li>
            <li>iOS</li>
          </ul>
        </div>
      </li>
      <li>
        Laptops
        <ul class="submenu">
          <li>i3</li>
          <li>i5</li>
          <li>i7</li>
        </ul>
      </li>
      <li>
        Speakers
        <ul class="submenu">
          <li>Bluetooth</li>
          <li>Wired</li>
        </ul>
      </li>
      <li>
        Others
      </li>
    </ul>
  </div>
</body>

</html>

如何将选项一个接一个地对齐？

2 个答案: