freeCodeCamp 响应式网页设计的认证课程第七章。排版是将文本样式设置为易于阅读并适合其目的的艺术。在通过建立营养标签来学习排版的课程中，你将使用排版来构建营养标签网页。你将学习如何使用 CSS 设置文本样式、调整行高和定位文本。以下为我在学习和实战练习过程中所做的笔记，可供参考。
一、重点 HTML 代码
head：
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| <head>
<meta charset="UTF-8">
<title>Nutrition Label</title>
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,700,800" rel="stylesheet">
<link href="styles.css" rel="stylesheet">
</head>
|
body：
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| <body>
<div class="label">
<header>
<h1 class="bold">Nutrition Facts</h1>
<div class="divider"></div>
<p>8 servings per container</p>
<p class="bold">Serving size <span class="right">2/3 cup (55g)</span></p>
</header>
<div class="divider lg"></div>
<div class="calories-info">
<p class="bold sm-text">Amount per serving</p>
<h1>Calories <span class="right">230</span></h1>
</div>
<div class="divider md"></div>
<div class="daily-value sm-text">
<p class="right bold no-divider">% Daily Value *</p>
<div class="divider"></div>
<p><span class="bold">Total Fat</span> 8g <span class="bold right">10%</span></p>
<p class="indent no-divider">Saturated Fat 1g <span class="bold right">5%</span></p>
<div class="divider"></div>
<p class="indent no-divider"><i>Trans</i> Fat 0g</p>
<div class="divider"></div>
<p><span class="bold">Cholesterol</span> 0mg <span class="right bold">0%</span></p>
<p><span class="bold">Sodium</span> 160mg <span class="right bold">7%</span></p>
<p><span class="bold">Total Carbohydrate</span> 37g <span class="right bold">13%</span></p>
<p class="indent no-divider">Dietary Fiber 4g</p>
<div class="divider"></div>
<p class="indent no-divider">Total Sugars 12g</p>
<div class="divider dbl-indent"></div>
<p class="dbl-indent no-divider">Includes 10g Added Sugars <span class="right bold">20%</span>
<div class="divider"></div>
<p class="no-divider"><span class="bold">Protein</span> 3g</p>
<div class="divider lg"></div>
<p>Vitamin D 2mcg <span class="right">10%</span></p>
<p>Calcium 260mg <span class="right">20%</span></p>
<p>Iron 8mg <span class="right">45%</span></p>
<p class="no-divider">Potassium 235mg <span class="right">6%</span></p>
</div>
<div class="divider md"></div>
<p class="note">* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a
daily diet. 2,000 calories a day is used for general nutrition advice.</p>
</div>
</body>
|
二、重点 CSS 代码
box-sizing 属性：
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| * {
box-sizing: border-box;
}
html {
font-size: 16px;
}
body {
font-family: 'Open Sans', sans-serif;
}
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letter-spacing 属性：
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| .label {
border: 2px solid black;
width: 270px;
margin: 20px auto;
padding: 0 7px;
}
header h1 {
text-align: center;
margin: -4px 0;
letter-spacing: 0.15px
}
p {
margin: 0;
}
|
divider 分隔栏：
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| .divider {
border-bottom: 1px solid #888989;
margin: 2px 0;
clear: right;
}
.bold {
font-weight: 800;
}
.right {
float: right;
}
.lg {
height: 10px;
}
.lg,
.md {
background-color: black;
border: 0;
}
.md {
height: 5px;
}
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calories-info：
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| .sm-text {
font-size: 0.85rem;
}
.calories-info h1 {
margin: -5px -2px;
overflow: hidden;
}
.calories-info span {
font-size: 1.2em;
margin-top: -7px;
}
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indent 缩进：
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| .indent {
margin-left: 1em;
}
.dbl-indent {
margin-left: 2em;
}
.note {
font-size: 0.6rem;
margin: 5px 0;
padding: 0 8px;
text-indent: -8px;
}
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:not pseudo-selector：
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| .daily-value p:not(.no-divider) {
border-bottom: 1px solid #888989;
}
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三、页面展示