一.項目實戰css
1.創新從模仿開始,我們的第一綜合實例就從模仿網頁-360囧圖開始,網址:http://xiaohua.360.cn/jiongtuhtml
2.第一個項目採用固定浮動佈局,單位爲像素。css3
3.因爲錄製課程的時候使用1024*768的分辨率,因此項目設定屏幕分辨率爲:1024*768web
二.學習要點瀏覽器
1.經常使用快捷方式編輯器
2.清除浮動的技巧ide
3.利用css3的動畫實現圖片輪播佈局
4.綜合應用咱們以前學過的知識來構建一個完整的web頁面學習
三.開始測試
1.建立項目文件夾存放相應的素材、文檔等。
將網頁另存在桌面上,這樣網站的圖片素材都會存儲在文件夾中。
2.對頁面進行結構分析。
3.準備素材。
4.開始編寫代碼。
四.
1.經常使用快捷方式
1)乘法 *: ul>li*5
在編輯器中輸入縮寫代碼: ul>li*5 ,而後按下拓展鍵(默認爲tab),便可獲得代碼片斷
2)後代 >: nav>ul>li
3)兄弟 +: div+h3+p*3
4)縮寫 : div>dl>(dt+dd)*3+footer>p
5)自增符號: $
6)縮寫 : #header
7)縮寫 : p.class1.class2.class3
8)縮寫 : ul>.class
9)其餘百度
2.清除浮動的技巧
消除子元素浮動對父元素背景/邊框/不能被子元素撐開的方法
1) 父元素結尾處增長一空元素div,並清除其浮動。缺點:若是佈局複雜,須要增長許多空標籤。
2)在父元素定義overflow:hidden(瀏覽器會自動檢查浮動區域的高度)
注:沒必要理會原理,知道用法便可。缺點:超出部分會被隱藏
3)利用僞類:after 父元素內容後增長空元素,並清除浮動。
3.利用css3的動畫實現圖片輪播
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>lunbo</title> </head> <style type="text/css"> *{margin:0;padding:0;} .d0{width:100px;height:100px;margin:100px; border:1px solid red; position:relative;} .d1{width:400px;height:100px;position:absolute; animation:lunbo 5s linear infinite;animation-direction:normal;} .d2{background:green;} .d3{background:red;} .d4{background:blue;} .d2,.d3,.d4{width:100px;height:100px;float:left;/*display:inline-block;*/} @keyframes lunbo{ 0%{left:0px;} 55%{left:-100px;} 75%{left:-200px;} 100%{left:-300px;} } </style> <body> <div class="d0"><!--100--> <div class="d1"><!--400--> <div class="d2">1</div><!--100--> <div class="d3">2</div> <div class="d4">3</div> <div class="d2">1</div> </div> </div> </body> </html>
4.綜合應用咱們以前學過的知識來構建一個完整的web頁面
index.html
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style1.css
*{margin:0;padding:0;} body{ background:whitesmoke;} ul{list-style-type:none;} a{text-decoration:none; } header{height:50px;width:100%;background:url(../img/1.png) repeat-x; } nav{width:1000px;height:50px;margin:0 auto; } nav a{color:#fff;} h1{color:#fff; font:bold 40px 隸書; float:left;margin-left:50px;} nav li{float:left; font-size:20px; height:50px; line-height:50px;letter-spacing:5px; margin-right:5px; width:100px; text-align:center;} /*左浮動部分*/ aside{ position:fixed; left:100px; top:100px;} /*圖片輪播部分*/ .switch{width:1000px; margin:0 auto;background:white;margin-top:15px; boder:2px solid red; overflow:hidden;} .swi{width:1000px; float:left;} .swi1{float:left; text-align:center;margin:10px 15px 10px 15px;} /*.switch:after{content:""; display:block; clear:both;}*/ .swi1:hover,.swi1:active{ color:orange; } .sw{width:4000px;position:relative;animation:swimg 9s linear infinite normal;} @keyframes swimg{ 0%{left:0px;} 5%{left:0px;} 30%{left:-1000px;} 40%{left:-1000px;} 60%{left:-2000px;} 70%{left:-2000px;} 95%{left:-3000px;} 100%{left:-3000px;} } .mid{ width:1000px;margin:0 auto;margin-top:15px; } .mid-nav{height:50px;line-height:50px;font-size:20px;} .more{ width:1000px;line-height:50px;height:50px; text-align:center; background:white;font-size:24px;margin:20px auto 20px auto;} .more a{color:black;} .all{color:orange;} .all1{color:black;} footer{width:100%;background:gray;} .footer1{width:1000px; text-align: center; margin:0 auto; background:darkgray;display:flex;} .footnav{height:180px; border-right:1px solid rgba(60,60,30,0.3)} .footnav h3{font-weight:normal;color:rgba(30,30,30,0.8);} .footnav1{} .footnav2{} .footnav3{} .foot-list{} .foot-list1{} .foot-list2{} .footer2{width:100%;height:50px; ;margin:0 auto;background:rgba(50,50,50,0.6);} .foot{width:1000px;margin:0 auto;color:#c2c2c2;font-size:14px; line-height:50px;} .maoo{background:white;width:100%;} .mimg{background:white;width:1000px;} .mimg li a{color:black;} /*.mimg li{text-align:center;float:left;margin:10px 14px 10px 14px;}*/ .mimgg{background:white;margin:5px 5px;text-align:center;float:left;margin:10px 14px 10px 14px;}