為xhu.html添加CSS樣式,設(shè)計(jì)實(shí)現(xiàn)西華大學(xué)主頁(yè)導(dǎo)航欄的多級(jí)菜單,除了本實(shí)驗(yàn)明確要求的設(shè)置之外,頁(yè)面效果應(yīng)盡可能與西華大學(xué)首頁(yè)導(dǎo)航欄一致,主要要求:
- 設(shè)置導(dǎo)航欄菜單橫向分布,當(dāng)鼠標(biāo)經(jīng)過(guò)導(dǎo)航欄主菜單項(xiàng)時(shí),顯示相應(yīng)的二級(jí)子菜單,一、二級(jí)菜單的菜單項(xiàng)寬度一致,見(jiàn)圖1;
- 導(dǎo)航菜單和展示圖應(yīng)能隨瀏覽器窗口寬度自適應(yīng)變化,但應(yīng)能確保導(dǎo)航欄主菜單項(xiàng)始終單行橫向分布,并且導(dǎo)航欄一級(jí)、二級(jí)菜單項(xiàng)中的超鏈接文本應(yīng)能始終單行顯示且寬度一致,見(jiàn)圖2;
- 不能更改原HTML文本,包括不能添加任何類名和ID屬性!
- 編寫應(yīng)用緩存文件,緩存頁(yè)面中圖像;
- 在頁(yè)面圖片下方動(dòng)態(tài)顯示當(dāng)前時(shí)間,歷史瀏覽次數(shù),添加姓名、學(xué)號(hào)、電話輸入域和一個(gè)普通提交按鈕(不要使用submit),如果用戶曾經(jīng)提交過(guò)信息,則打開(kāi)頁(yè)面時(shí)在輸入域默認(rèn)顯示用戶歷史信息。(相關(guān)布局和元素樣式自行設(shè)計(jì))。
友情提示:推薦使用彈性盒布局設(shè)計(jì)導(dǎo)航欄; 二級(jí)菜單的顯示與隱藏display屬性;二級(jí)菜單的定位采用position定位。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>西華大學(xué)</title>
<style>
* {
padding: 0;
margin: 0;
}
body {
font-size: 18px;
color: white;
}
a {
text-decoration: none;
color: white;
/*color:white;*/
}
ul {
position: relative;
background: #0e6bc2;
height: 50px;
width: auto;
list-style: none;
}
li {
background: #0e6bc2;
min-width: 144px;
width: auto;
height: 50px;
line-height: 50px;
}
li:hover {
background-color: #005691;
}
div {
box-sizing: border-box;
/*便于對(duì)齊,免受各類型元素padding不一致的影響*/
}
.nav {
display: flex;
justify-content: center;
flex-wrap: nowrap;
width: 100%;
}
.sub-menu {
display: none;
}
.menu-item {
display: block;
text-align: center;
}
#bg {
margin: 0 auto;
max-width: 1400px;
}
img {
width: 100%;
}
.block {
display: block;
}
input {
outline-style: none;
border: 1px solid #ccc;
border-radius: 3px;
padding: 3px 4px;
width: 200px;
font-size: 14px;
font-weight: 200;
}
.form {
color: black;
margin: 0 auto;
max-width: 1400px;
}
#datetime {
font-size: 20px;
background: linear-gradient(to right, rgb(53, 177, 72), rgb(118, 7, 7));
-webkit-background-clip: text;
color: transparent;
}
.times {
letter-spacing: 0.2rem;
font-size: 1.2rem;
background-image: -webkit-linear-gradient(left, #961414, #9005e6 10%, #142396 10%, #05e679 50%, #879614);
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
-webkit-background-size: 200% 100%;
}
</style>
<script>
var user = JSON.parse(localStorage.getItem('user')) || []
var m = parseInt(localStorage.getItem('times')) || 1;
console.log(m);
window.addEventListener("load", () => {
let item = document.getElementsByClassName('menu-item')
for (let i = 0; i < item.length; i++) {
item[i].addEventListener("mouseover", mouserOver)
item[i].addEventListener("mouseout", mouserOut)
}
function mouserOver() {
this.children[1].classList.add('block')
}
function mouserOut() {
this.children[1].classList.remove('block')
}
setInterval("document.getElementById('datetime').innerHTML=new Date().toLocaleString();", 500);
document.getElementById('frequency').innerHTML = m
})
window.addEventListener("beforeunload", () => {
m++;
console.log(m);
localStorage.setItem('times', JSON.stringify(m))
})
nam = document.getElementById("name")
num = document.getElementById("num")
tel = document.getElementById("tel")
nam.value = user.id
num.value = user.num
tel.value = user.tel
function local(value) {
localStorage.setItem('user', JSON.stringify(value))
}
function add() {
const nam = {
id: document.getElementById('name').value,
num: document.getElementById('num').value,
tel: document.getElementById('tel').value,
}
local(nam)
}
</script>
</head>
<body>
<ul class="nav">
<li class="menu-item"><a >學(xué)校概況</a>
<ul class="sub-menu">
<li><a target="new">西華簡(jiǎn)介</a></li>
<li>歷史沿革</li>
<li>現(xiàn)任領(lǐng)導(dǎo)</li>
<li>西華標(biāo)識(shí)</li>
<li>西華影像</li>
</ul>
</li>
<li class="menu-item"><a >機(jī)構(gòu)設(shè)置</a>
<ul class="sub-menu">
<li>學(xué)院</li>
<li>部門</li>
</ul>
</li>
<li class="menu-item"><a >人才培養(yǎng)</a>
<ul class="sub-menu">
<li>師資隊(duì)伍</li>
<li>本科教育</li>
<li>研究生教</li>
<li>留學(xué)生教育</li>
<li>??平逃?lt;/li>
<li>繼續(xù)教育</li>
</ul>
</li>
<li class="menu-item"><a >科學(xué)研究</a>
<ul class="sub-menu">
<li>科研信息</li>
<li>科研成果</li>
<li>學(xué)科科研平臺(tái)</li>
<li>學(xué)術(shù)期刊</li>
</ul>
</li>
<li class="menu-item"><a >招生就業(yè)</a>
<ul class="sub-menu">
<li>本??普猩?lt;/li>
<li>研究生招生</li>
<li>繼續(xù)教育招生</li>
<li>就業(yè)信息</li>
</ul>
</li>
<li class="menu-item"><a >合作交流</a>
<ul class="sub-menu">
<li>國(guó)際交流與合作</li>
<li>地方合作</li>
<li>西華大學(xué)科技園</li>
<li>國(guó)際教育學(xué)院</li>
</ul>
</li>
<li class="menu-item"><a >公共服務(wù)</a>
<ul class="sub-menu">
<li>學(xué)校校歷</li>
<li>網(wǎng)絡(luò)服務(wù)</li>
<li>招標(biāo)投標(biāo)</li>
<li>后勤服務(wù)</li>
<li>辦公電話</li>
</ul>
</li>
<li class="menu-item"><a >人才招聘</a>
</li>
</ul>
<div id="bg"><img src="images/bg.jpg"></div>
<div class="form">
姓名<input value="" type="text" id="name"> 學(xué)號(hào)
<input value="" type="number" id="num"> 電話
<input value="" type="tel" id="tel">
<button onclick=add()>提交</button>
<div id="datetime">時(shí)間</div>
<span class="times">歷史瀏覽次數(shù):<span id="frequency">0</span></span>
</div>
</body>
</html>
css:?
<style>
* {
padding: 0;
margin: 0;
}
body {
font-size: 18px;
color: white;
}
a {
text-decoration: none;
color: white;
/*color:white;*/
}
ul {
position: relative;
background: #0e6bc2;
height: 50px;
width: auto;
list-style: none;
}
li {
background: #0e6bc2;
min-width: 144px;
width: auto;
height: 50px;
line-height: 50px;
}
li:hover {
background-color: #005691;
}
div {
box-sizing: border-box;
/*便于對(duì)齊,免受各類型元素padding不一致的影響*/
}
.nav {
display: flex;
justify-content: center;
flex-wrap: nowrap;
width: 100%;
}
.sub-menu {
display: none;
}
.menu-item {
display: block;
text-align: center;
}
#bg {
margin: 0 auto;
max-width: 1400px;
}
img {
width: 100%;
}
.block {
display: block;
}
input {
outline-style: none;
border: 1px solid #ccc;
border-radius: 3px;
padding: 3px 4px;
width: 200px;
font-size: 14px;
font-weight: 200;
}
.form {
color: black;
margin: 0 auto;
max-width: 1400px;
}
#datetime {
font-size: 20px;
background: linear-gradient(to right, rgb(53, 177, 72), rgb(118, 7, 7));
-webkit-background-clip: text;
color: transparent;
}
.times {
letter-spacing: 0.2rem;
font-size: 1.2rem;
background-image: -webkit-linear-gradient(left, #961414, #9005e6 10%, #142396 10%, #05e679 50%, #879614);
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
-webkit-background-size: 200% 100%;
}
</style>
?新增HTML:
<div class="form">
姓名<input value="" type="text" id="name"> 學(xué)號(hào)
<input value="" type="number" id="num"> 電話
<input value="" type="tel" id="tel">
<button onclick=add()>提交</button>
<div id="datetime">時(shí)間</div>
<span class="times">歷史瀏覽次數(shù):<span id="frequency">0</span></span>
</div>
js腳本:
<script>
var user = JSON.parse(localStorage.getItem('user')) || []
var m = parseInt(localStorage.getItem('times')) || 1;
console.log(m);
window.addEventListener("load", () => {
let item = document.getElementsByClassName('menu-item')
for (let i = 0; i < item.length; i++) {
item[i].addEventListener("mouseover", mouserOver)
item[i].addEventListener("mouseout", mouserOut)
}
function mouserOver() {
this.children[1].classList.add('block')
}
function mouserOut() {
this.children[1].classList.remove('block')
}
setInterval("document.getElementById('datetime').innerHTML=new Date().toLocaleString();", 500);
document.getElementById('frequency').innerHTML = m
})
window.addEventListener("beforeunload", () => {
m++;
console.log(m);
localStorage.setItem('times', JSON.stringify(m))
})
nam = document.getElementById("name")
num = document.getElementById("num")
tel = document.getElementById("tel")
nam.value = user.id
num.value = user.num
tel.value = user.tel
function local(value) {
localStorage.setItem('user', JSON.stringify(value))
}
function add() {
const nam = {
id: document.getElementById('name').value,
num: document.getElementById('num').value,
tel: document.getElementById('tel').value,
}
local(nam)
}
</script>
測(cè)試結(jié)果截圖:
?
?文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-758673.html文章來(lái)源:http://www.zghlxwxcb.cn/news/detail-758673.html
?
到了這里,關(guān)于web前端——頁(yè)面設(shè)計(jì)的文章就介紹完了。如果您還想了解更多內(nèi)容,請(qǐng)?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章,希望大家以后多多支持TOY模板網(wǎng)!