The design using p and CSS is also an interesting design effect. This article will give you a brief introduction to p and CSS to realize the radio station list design, how to achieve the effect, and what is the code to realize the p and CSS to realize the radio station list design effect? Let’s take a look below.
CSS Spite technology: It is also called CSS sprite technology. In fact, CSS sprites are icon elements in pictures. These icons can be used as buttons, labels, logos, etc. This technology has been applied to many websites, which can effectively reduce the number of transmission requests. The required icons are summarized in one picture, and can be applied to the entire page once downloaded
The following examples are mainly the application of CSS wizard technology, directly Po code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>酷狗电台列表设计</title>
<style>
#frm{
margin:0;
padding:0;
list-style-type: none;
width: 500px;
border:1px solid #000;
overflow: hidden;
}
#frm *{
margin:0;
padding: 0;
font-size: 12px;
}
#frm li{
padding:4px 0;
width: 47%;
float: left;
margin:5px 15px 5px 0;
cursor: pointer;
}
#frm li span{
color:#999;
position: relative;
}
#frm li .d{
width: 38px;
height: 38px;
float: left;
margin:0px 12px 6px 0;
background-image: url(img/spite2.jpg);
position: relative;
}
#frm li .cont{
position: relative;
height: 37px;
overflow: hidden;
}
.cont p{
margin:5px 0 5px 0;
}
.d p{
position: absolute;
width: 100%;
height: 100%;
}
.d .img,.d .play{
background-image: url(img/spite2.jpg);
}
.l1 .d .img{
background-position: 38px 0;
}
.l2 .d .img{
background-position: 76px 0;
}
.l3 .d .img{
background-position: 114px 0;
}
.l4 .d .img{
background-position: 152px 0;
}
.l5 .d .img{
background-position: 190px 0;
}
.l6 .d .img{
background-position: 228px 0;
}
.l7 .d .img{
background-position: 266px 0;
}
.l8 .d .img{
background-position: 304px 0;
}
.l9 .d .img{
background-position: 342px 0;
}
.ll .d .img{
background-position: 380px 0;
}
.d .mask,.d .play{
visibility: hidden;
}
.choose .d{
background-position: 38px 0;
outline: 1px solid rgb(233,243,250);
}
.choose .d .mask{
background-color: #000;
filter:alpha(Opacity=50);
opacity: 0.5;
height: 32px;
width: 32px;
top:3px;
left: 3px;
visibility: visible;
}
.choose .d .play{
background-position: 418px 0;
visibility: visible;
}
.choose .cont p{
font-weight: bold;
color:rgb(0,155,250);
}
</style>
<script>
function mouseoverhandle(obj){
obj.className += ' choose';
}
function mouseouthandle(obj){
obj.className = obj.className.substring(0,2);
}
</script>
</head>
<body>
<ul id="frm">
<li class="l1" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>酷狗热歌</p>
<span href="#">徐朗 - 小夜曲</span>
</p>
</li>
<li class="l2" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>DJ热碟</p>
<span href="#">曾春年 - 最幸福的人</span>
</p>
</li>
<li class="l3" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>网络红歌</p>
<span href="#">徐志强 - 想你的时候</span>
</p>
</li>
<li class="l4" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>新歌</p>
<span href="#">孙俪 - 美丽信号</span>
</p>
</li>
<li class="l5" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>经典</p>
<span href="#">游鸿明 - 寻你</span>
</p>
</li>
<li class="l6" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>怀旧粤语</p>
<span href="#">陈慧娴 - 人生何处不相逢</span>
</p>
</li>
<li class="l7" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>钢琴</p>
<span href="#">July - My Soul</span>
</p>
</li>
<li class="l8" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>KTV必点</p>
<span href="#">蔡健雅 - 无底洞</span>
</p>
</li>
<li class="l9" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>思念</p>
<span href="#">张杰 - 这就是爱</span>
</p>
</li>
<li class="ll" onmouseover="mouseoverhandle(this)" onmouseout="mouseouthandle(this)">
<p class="d">
<p class="img"></p>
<p class="mask"></p>
<p class="play"></p>
</p>
<p class="cont">
<p>DJ外文舞曲</p>
<span href="#">Jean Cloud Ades</span>
</p>
</li>
</ul>
<script>
var ul = document.getElementById('frm');
var li = document.getElementsByTagName('li');
var spans;
for(var i=0;i<li.length;i++){
spans = li[i].getElementsByTagName('span');
li[i].span_obj = spans[0];
}
var index = -1;
function showup(){
if(li[index].span_obj.style.top == ''){
li[index].span_obj.style.top = '13px';
}
if(parseInt(li[index].span_obj.style.top)<=0){
li[index].span_obj.style.top = '';
setTimeout('shownext()',1000);
}else{
li[index].span_obj.style.top = parseInt(li[index].span_obj.style.top)-1 +'px';
setTimeout('showup()',100);
}
}
function shownext(){
index++;
index = index%li.length;
showup();
}
setTimeout(shownext,1000);
</script>
</body>
</html>Generating effect:
Code analysis:
1. The ul tag contains 10 li tags. Because the icon of each li tag is a different sub-image, different class attributes are added to each li tag.
2. The p tag whose class attribute is d for each li tag contains three p tags. Their class attributes are img, mask and play. These three tags are the theme icon, mask icon and play icon in order. Their parent node p (class attribute is d) has a background image as its border.
3. Each li tag has added onmouseover and onmouseout event response letters.
4. The last piece of js code is to simulate the effect of the song name rising when switching songs in the music box.
First, the program obtains the tag with the id of frm, and obtains all li sub-tags of the tag. At the same time, it obtains all span tags of li, and binds the first span tag to span_obj of the li tag object.
Two timeout functions: shownext() and showup(). The showup() function is responsible for producing the song title raising effect, while the shownext() function is responsible for switching to the playback of the song on the next music station.
The method of an object cannot set itself as a timeout function
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Sharing the basic knowledge of div and css layout
How Use DIV and CSS to make navigation bars
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