第四部分——Portfolio
简要介绍：
本部分内容看着比较多，其实它的许多地方是一样的。所以只需要设置好一个类的样式，就可以运用到它们所有的上面。
页面效果：
HTML代码：
<section id="portfolio">
<div class="container">
<div class="align"><i class="icon-desktop-circled"> </i></div>
<h1>Portfolio...</h1>
<div class="row">
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-01.jpg"><img src="img/portfolio-01.jpg" alt=" " /></a>
</div>
</div>
<div class="inside">
<hgroup><h2>Ethan Marcotte Design</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-02.jpg"><img src="img/portfolio-02.jpg" alt=" "/></a>
</div>
</div >
<div class="inside">
<hgroup><h2>A Book Apart</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-03.jpg"><img src="img/portfolio-03.jpg" alt=" " /></a>
</div>
</div>
<div class="inside">
<hgroup><h2>Four Rules for Designers</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
</div>
<div class="row">
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-01.jpg"><img src="img/portfolio-01.jpg" alt=" " /></a>
</div>
</div>
<div class="inside">
<hgroup><h2>Ethan Marcotte Design</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-02.jpg"><img src="img/portfolio-02.jpg" alt=" "/></a>
</div>
</div >
<div class="inside">
<hgroup><h2>A Book Apart</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
<div class="span4">
<div class="mask2">
<div>
<a href="img/portfolio-03.jpg"><img src="img/portfolio-03.jpg" alt=" " /></a>
</div>
</div>
<div class="inside">
<hgroup><h2>Four Rules for Designers</h2></hgroup>
<div class="entry-content">
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>
<a class="more-link" href="#">view project</a>
</div>
</div>
</div>
</div>
</div>
</section>
CSS代码：
#portfolio{
margin-top: 20px;
padding: 70px;
}
#portfolio .row{
text-align: center;
}
#portfolio .align{
text-align:center;
font-size: 6em;
margin: 10px 0 0 0;
padding: 0;
}
#portfolio h1{
text-align: center;
font-size: 3em;
font-family: 'Patua One',cursive;
margin: 0.4em 0 1em 0;
}
#portfolio h2{
text-align: left;
margin-top: 1em;
font-weight: bold;
font-family: 'Patua One',cursive;
text-transform: capitalize;
/*控制文本大小写，capitalize表示文本中每个单词以大写字母开头*/
}
.mask2 img{
margin: 0 auto;
max- 100%;
display: block;
filter: alpha(opacity=80);
/*滤镜属性，定义元素的可视效果。设置元素的透明度为0.8*/
opacity: 0.8;
box-shadow: 1px 1px 10px rgba(0,0,0,0.2);
transition: all 0.3s ease-in-out; /*渐变属性*/
}
.mask2 img:hover{
filter: alpha(opacity=99);
opacity: 1; /*不透明*/
}
#portfolio .entry-content{
margin: 1em 0 2.5em;
}
#portfolio .span4{
display: inline-block; /*元素为行内块元素*/
32%;
}
#portfolio p{
text-align: left; /*左对齐*/
line-height: 25px;
}
#portfolio .more-link{
float: left;
text-decoration: none;
text-transform: uppercase;
/*控制文本大小写，uppercase表示文本中每个单词都是大写字母*/
font-family: 'Open Sans',serif;
font-weight: bold;
font-size: 0.9em;
color:#f0bf00;
margin: 12px 0 40px 0;
}
#portfolio .more-link:hover{
text-decoration: underline ;
}
总结：
本部分没有什么难点，就是调整样式比较繁琐。
遇到两个自己不熟悉的属性：
text-transform：控制内容的大小写。
filter：滤镜属性，定义元素的可视效果。