Correcting teacher:天蓬老师
Correction status:qualified
Teacher's comments:
作业内容:1. 实例演示选择器组合实现优先级提权方式; 2.实例演示字体与字体图标;3.实例演示盒模型常用属性的缩写方案
<!DOCTYPE html>
<html>
<head>...</head>
<body>
<p class="paragraph on" id="foo">tag content</p>
</body>
</html>
<style>
/* 对元素 tag content 提权依次为 */
/* [0, 0, 1] */
p {
background-color: violet;
}
/* 1. 声明顺序覆盖提权 */
/* [0, 0, 1] */
p {
background-color: blueviolet;
}
/* 2. 元素组合提权 */
/* [0 ,0 ,2] */
body p {
background-color: brown;
}
/* [0, 0, 3] */
html body p {
background-color: burlywood;
}
/* [0, 1, 0] */
.paragraph {
background-color: cadetblue;
}
/* [0, 1, 1] */
p.paragraph {
background-color: chartreuse;
}
/* [0, 1, 2] */
body p.paragraph {
background-color: chocolate;
}
/* [0, 1, 3] */
html body p.paragraph {
background-color: coral;
}
/* [0, 2, 0] */
.paragraph.on {
background-color: cornflowerblue;
}
/* [0, 2, 1] */
p.paragraph.on {
background-color: cornsilk;
}
/* [0, 2, 2] */
body p.paragraph.on {
background-color: crimson;
}
/* [0, 2, 3] */
html body p.paragraph.on {
background-color: cyan;
}
/* [0, 3, 0] */
:root .paragraph.on {
background-color: darkblue;
}
/* [0, 3, 1] */
:root p.paragraph.on {
background-color: darkcyan;
}
/* [0, 3, 2] */
:root body p.paragraph.on {
background-color: darkgoldenrod;
}
/* [1, 0, 0] */
#foo {
background-color: darkgray;
}
/* [1, 0, 1] */
p#foo {
background-color: darkgreen;
}
/* [1, 0, 2] */
body p#foo {
background-color: darkkhaki;
}
/* [1, 0, 3] */
html body p#foo {
background-color: darkmagenta;
}
/* [1, 1, 0] */
.paragraph#foo {
background-color: darkolivegreen;
}
/* [1, 1, 1] */
p.paragraph#foo {
background-color: darkorange;
}
/* [1, 1, 2] */
body p.paragraph#foo {
background-color: darkorchid;
}
/* [1, 1, 3] */
html body p.paragraph#foo {
background-color: darkred;
}
/* [1, 2, 0] */
.paragraph.on#foo {
background-color: darksalmon;
}
/* [1, 2, 1] */
p.paragraph.on#foo {
background-color: darkseagreen;
}
/* [1, 2, 2] */
body p.paragraph.on#foo {
background-color: darkslateblue;
}
/* [1, 2, 3] */
html body p.paragraph.on#foo {
background-color: darkslategray;
}
/* [1, 3, 0] */
:root .paragraph.on#foo {
background-color: darkturquoise;
}
/* [1, 3, 1] */
:root p.paragraph.on#foo {
background-color: darkviolet;
}
/* [1, 3, 2] */
:root body p.paragraph.on#foo {
background-color: deeppink;
}
</style>
/* 已将 iconfont.* 复制到 css 目录 */
<link rel="stylesheet" href="css/iconfont.css">
<p>
<span class="iconfont icon-baidu"></span>
<span class="iconfont icon-google"></span>
</p>
<!DOCTYPE html>
<html>
<head>...</head>
<body>
<div class="box">box conent</div>
</body>
</html>
/* 盒模型常用属性的缩写 */
.box{
box-sizing: border-box;
width: 300px;
height: 200px;
text-align: center;
color: violet;
/* 边框 border */
border-width: 5px;
border-color: red;
border-style: solid;
border: 15px red solid;
/* 字体 font */
font-family: 'Times New Roman', Times, serif;
font-size: 36px;
font-weight: lighter;
font-style: italic;
font: italic lighter 36px sans-serif;
/* 背景 background */
background-image: url(https://www.php.cn/static/images/user_avatar.jpg);
background-repeat: no-repeat;
background-position: top center;
background: url(https://www.php.cn/static/images/user_avatar.jpg) no-repeat top center;
/* 内外边距,上右下左 */
padding: 10px 20px;
margin: 15px;
background-color: grey;
background-clip: content-box;
}