Question

我对网络开发很陌生。这实际上是我的第一个个人项目，我无法对齐输入字段。我在XD中设计了布局并尝试对设计进行编码。请记住，我正在研究移动布局，因此它只有大约400像素宽。我想我可以担心稍后对媒体查询的响应能力。无论如何，我已尝试定位输入字段并使用 text-align：center; ，但它无效。请帮忙！

这就是我的网页目前的样子：

enter image description here]

这就是我需要的样子：

This is what I need them to look like]

    <!doctype html>
<html>
<head>
  <meta charset="utf-8" />
    <link href="https://fonts.googleapis.com/css?family=Lato:300,400,700" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,300i,400,400i,500,700" rel="stylesheet">
    <link rel="stylesheet" href="css/normalize.css" />
    <link rel="stylesheet" href="css/main.css" />

    <title>40 Hour Workweek Calculator</title>

</head>
<header>
  <h3>40-Hour Workweek Calculator</h3>
</header>

<body>
    <h4 class="sections">Total hours needed to work this week:</h4>
      <input type="text" class="userInput" placeholder="ex: 40" />

    <h4 class="sections">On Friday morning, how many hours<br />(in whole numbers) do you currently have?</h4>
      <input type="text" class="userInput" placeholder="ex: 33"/>

    <h4 class="sections">Enter remaining decimals:</h4>
      <input type="text" class="userInput" placeholder="ex: .57"/>

    <h4 class="sections">Converted to time format:</h4>
      <div class="defaultCalc"></div>

    <h4 class="sections">Remaining hours to work:</h4>
      <div class="defaultCalc"></div>

    <h4 class="sections">Enter time you clocked in on Friday:</h4>
      <input type="text" class="userInput" placeholder="ex: 7:22"/><br />

<div class="buttons">
    <button class="amButton">AM</button>
    <button class="pmButton">PM</button>
</div>

    <h4 class="sections">Enter today's lunch break in minutes:</h4>
      <input type="text" class="userInput" placeholder="ex: 30"/>

<div class="sections">
    <button class="calcButton">Calculate my hours</button>

<h4 class="sections">Time to clock out on Friday:</h4>
    <div class="defaultCalc clockOutTime"></div>

<div class="sections">
    <div class="clockOutAMButton">AM</div>
    <div class="clockOutPMButton">PM</div>
</div>

</body>

CSS：

/*Base style layouts*/

header, body {
  font-family: 'Lato', sans-serif;
}

body {
  background: #edf0f1;
  font-family: 'Roboto', sans-serif;
}

header {
  width: 100%;
  height: 70px;
  border-bottom-left-radius: 46px;
  border-bottom-right-radius: 46px;
  background-color: #15D1BC;
  box-shadow: 0px 2px 4px rgba(44,62,80,0.15);
  color: #fff;
  text-align: center;
}

header h3 {
  margin: 0;
  padding-top: 20px;
  font-size: 1.25em;
  font-weight: 400;
}

h4 {
  font-weight: 100;
  color: #95989A;
  text-align: center;
}

.sections {
  margin: 30px 0;
}


/*Gray areas that display javascript calculations*/

.defaultCalc {
  border: 1px none;
  width: 133px;
  height: 29px;
  background-color: #DBDBDB;
  border-radius: 12px;
  text-align: center;
}


/*Sections that require the user to input a number*/
.userInput::placeholder {
  font-weight: 100;
  font-style: italic;
  color: rgba(149, 152, 154, 0.4);
  text-align: center;
}

.userInput {
  border: 1px solid #D3D8DB;
  width: 133px;
  height: 29px;
  border-radius: 12px;
}


.sections {
  margin: 30px 0;
}

/*Buttons*/

.amButton,
.pmButton {
  border: 1px;
  width: 45px;
  height: 30px;
  background-color: #fff;
  color: #95989A;
  border-radius: 12px;
  font-weight: 100;
}

.buttons {
  margin: 25px 0;
}

.calcButton {
  border: 1px;
  width: 217px;
  height: 36px;
  background-color: #15D1BC;
  color: #FFF;
  border-radius: 18px;
  font-weight: 100;
  font-size: 1.1em;
}

.clockOutTime {
  border: 1px none;
  width: 133px;
  height: 29px;
  background-color: #60B6FF;
  color: #fff;
  border-radius: 12px;
  text-align: center;
}

.clockOutAMButton,
.clockOutPMButton {
  border: 1px;
  width: 45px;
  height: 30px;
  background-color: #fff;
  color: #95989A;
  border-radius: 12px;
  font-weight: 300;
  text-align: center;
  display: inline-block;
  line-height: 30px;
}

button:focus {outline:0;}

input:focus {
  border-color: #15D1BC;
  outline: none;
}

.pmButton:focus {
  background-color: #15D1BC;
  color: #FFF;
}

.amButton:focus {
  background-color: #15D1BC;
  color: #FFF;
}

.calcButton:active {
  font-size: 1.075em;
}

Answer 1

将您要使用的input text-align: center置于父的中心位置body。您可以将新元素作为父元素引入，也可以在您的情况下将其应用于.defaultCalc。

然后，您的inline-block元素不会居中，因为它们会阻止元素。你可以让他们margin-left: auto; margin-right: auto（我做了什么），或者申请header

您的body元素也位于<body></body>之前 - 它必须位于/*Base style layouts*/ header, body { font-family: 'Lato', sans-serif; } body { background: #edf0f1; font-family: 'Roboto', sans-serif; text-align: center; } header { width: 100%; height: 70px; border-bottom-left-radius: 46px; border-bottom-right-radius: 46px; background-color: #15D1BC; box-shadow: 0px 2px 4px rgba(44,62,80,0.15); color: #fff; text-align: center; } header h3 { margin: 0; padding-top: 20px; font-size: 1.25em; font-weight: 400; } h4 { font-weight: 100; color: #95989A; text-align: center; } .sections { margin: 30px 0; } /*Gray areas that display javascript calculations*/ .defaultCalc { border: 1px none; width: 133px; height: 29px; background-color: #DBDBDB; border-radius: 12px; display: inline-block; } /*Sections that require the user to input a number*/ .userInput::placeholder { font-weight: 100; font-style: italic; color: rgba(149, 152, 154, 0.4); text-align: center; } .userInput { border: 1px solid #D3D8DB; width: 133px; height: 29px; border-radius: 12px; } .sections { margin: 30px 0; } /*Buttons*/ .amButton, .pmButton { border: 1px; width: 45px; height: 30px; background-color: #fff; color: #95989A; border-radius: 12px; font-weight: 100; } .buttons { margin: 25px 0; } .calcButton { border: 1px; width: 217px; height: 36px; background-color: #15D1BC; color: #FFF; border-radius: 18px; font-weight: 100; font-size: 1.1em; } .clockOutTime { border: 1px none; width: 133px; height: 29px; background-color: #60B6FF; color: #fff; border-radius: 12px; text-align: center; } .clockOutAMButton, .clockOutPMButton { border: 1px; width: 45px; height: 30px; background-color: #fff; color: #95989A; border-radius: 12px; font-weight: 300; text-align: center; display: inline-block; line-height: 30px; } button:focus {outline:0;} input:focus { border-color: #15D1BC; outline: none; } .pmButton:focus { background-color: #15D1BC; color: #FFF; } .amButton:focus { background-color: #15D1BC; color: #FFF; } .calcButton:active { font-size: 1.075em; }

之内

＆＃13;

   <!doctype html>
<html>
<head>
  <meta charset="utf-8" />
    <link href="https://fonts.googleapis.com/css?family=Lato:300,400,700" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,300i,400,400i,500,700" rel="stylesheet">
    <link rel="stylesheet" href="css/normalize.css" />
    <link rel="stylesheet" href="css/main.css" />

    <title>40 Hour Workweek Calculator</title>

</head>


<body>
<header>
  <h3>40-Hour Workweek Calculator</h3>
</header>
    <h4 class="sections">Total hours needed to work this week:</h4>
      <input type="text" class="userInput" placeholder="ex: 40" />

    <h4 class="sections">On Friday morning, how many hours<br />(in whole numbers) do you currently have?</h4>
      <input type="text" class="userInput" placeholder="ex: 33"/>

    <h4 class="sections">Enter remaining decimals:</h4>
      <input type="text" class="userInput" placeholder="ex: .57"/>

    <h4 class="sections">Converted to time format:</h4>
      <div class="defaultCalc"></div>

    <h4 class="sections">Remaining hours to work:</h4>
      <div class="defaultCalc"></div>

    <h4 class="sections">Enter time you clocked in on Friday:</h4>
      <input type="text" class="userInput" placeholder="ex: 7:22"/><br />

<div class="buttons">
    <button class="amButton">AM</button>
    <button class="pmButton">PM</button>
</div>

    <h4 class="sections">Enter today's lunch break in minutes:</h4>
      <input type="text" class="userInput" placeholder="ex: 30"/>

<div class="sections">
    <button class="calcButton">Calculate my hours</button>

<h4 class="sections">Time to clock out on Friday:</h4>
    <div class="defaultCalc clockOutTime"></div>

<div class="sections">
    <div class="clockOutAMButton">AM</div>
    <div class="clockOutPMButton">PM</div>
</div>

</body>

＆＃13;

Toolbar

＆＃13;

如何让输入字段显示在中心？文字对齐：中心;不起作用

1 个答案: