佈局
<!DOCTYPE html>
<html>
<head>
<title>簡書</title>
</head>
<body>
<div class="contain">
<div class="head">
<a href="/" class="logo-index"></a>
<ul class="list-ul">
<li > <a href="/">發現</a></li>
<li > <a href="/">關注</a></li>
<li > <a href="/">消息</a></li>
<div class="search">
<input type="" placeholder="搜索" class="search-input"/>
<img src="" class="search-logo">
</div>
</ul>
<div class="user">
<img src="./static/avatar.jpg"/>
<ul class="dropdown-menu">
<li><a href="">我的主頁</a></li>
<li><a href="">收藏的文章</a></li>
<li><a href="">幫助與反饋</a></li>
<li><a href="">設置</a></li>
<li><a href="">退出</a></li>
</ul>
</div>
<a href="/" class="button-write">
<img src="" class="button-write-logo">
寫文章</a>
</div>
</div>
</div>
<style type="text/css">
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
body{
margin: 0;
padding:0 ;
}
a{
text-decoration:none;
color: #0a0a0a;
cursor: pointer;
}
.head{
position: relative;
min-width: 768px;
max-width: 1440px;
background-color: #fff;
height: 56px;
border-bottom: 1px solid #f0f0f0;
}
.logo-index{
background: url(static/nav-logo.png);
position: absolute;
top: 0;
left: 0;
display: block;
width: 100px;
height: 56px;
/**
圖片同比縮放在容器中
*/
background-size: contain;
}
.list-ul{
display: flex;
margin-left: 100px;
width: 400px;
height: 56px;
float: left;
vertical-align:middle;
}
.list-ul li{
display: flex;
width: 50px;
height: 56px;
justify-content: center;
align-items: center;
}
.list-ul a{
color: #0a0a0a;
font-weight:700;
font-family: sans-serif;
}
.list-ul li:hover{
background-color: #eee;
}
.search {
display: flex;
float: left;
align-items: center;
}
.search input{
margin-left: 12px;
width: 110px;
height: 38px;
padding: 0 40px 0 20px;
border-radius: 40px;
border:1px solid #eee;
outline: none;
background-color: #eee;
transition:all 0.5s ease;
}
.search input:focus{
width: 138px;
transition:all 0.5s ease;
}
.user{
display: inline-block;
width: 80px;
height: 48px;
padding-top: 8px;
position: absolute;
right: 120px;
text-align: center;
cursor: pointer;
}
.user:hover .dropdown-menu {
display: block;
}
.user:hover{
background-color: #eee;
}
.user img{
width: 40px;
height: 40px;
border-radius: 50% 50%;
border:1px solid #eee;
}
.button-write{
display: inline-block;
height: 40px;
width:100px;
text-align: center;
background-color: #ea6f5a;
color: #fff;
border-radius: 20px;
margin:8px 12px 0 12px;
line-height: 34px;
float: right;
font-size: 15px;
opacity: 0.9;
}
.button-write:hover{
opacity: 1
}
.dropdown-menu{
display: none;
background-color: #fff;
margin-top: 4px;
box-shadow: 0 0 10px #ddd;
width: 120px
}
.dropdown-menu li{
font-family: sans-serif;
font-weight: 700;
padding: 10px;
display: box;
box-align:center;
vertical-align: center;
}
.dropdown-menu li:hover{
background-color: #ddd;
}
</style>
</body>
</html>
實現了基本的動畫 純初級入門