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效果：当浏览器缩小时，导航栏消失，显示导航条
#pull {
font-size: 20px;
display: block;
width: 100%;
position: relative;
color: #2166a9;
background-color: #2166a9;
}
#pull:after {
background:url('../img/nav-icon.png')no-repeat;
width: 30px;
content:"";
width: 30px;
height: 30px;
display: inline-block;
position: absolute;
right: 5px;
top: 17px;
}
.cssmenu {
float: right;
}
.cssmenu ul {
position:relative;
top:30px;
}
.cssmenu > ul > li {
display:inline-block;
position: relative;
font-weight:bold;
margin-right: 40px;
}
.cssmenu > ul > li.active a{
color: #fff;
}
.cssmenu > ul > li img {
vertical-align: middle;
}
.cssmenu > ul > li > a {
font-family: "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif, sans-serif;
text-transform: uppercase;
display: block;
font-size: 16px;
color: #fff;
line-height: 1.8em;
padding: 14px 15px;
-webkit-transition: 0.9s;
-moz-transition: 0.9s;
-o-transition: 0.9s;
transition: 0.9s;
letter-spacing: 0px;
}
.cssmenu > ul > li > a:hover {
color: #2166s9;
}
.cssmenu > ul > li > ul {
z-index: 999;
opacity: 0;
visibility: hidden;
background: #5C5C5C;
color:#fff;
text-align: left;
position: absolute;
top: 55px;
left: 50%;
margin-top: 22px;
margin-left: -90px;
width: 180px;
-webkit-transition: all .3s .1s;
-moz-transition: all .3s .1s;
-o-transition: all .3s .1s;
transition: all .3s .1s;
}
.cssmenu > ul > li:hover > ul {
opacity: 1;
top: 65px;
visibility: visible;
}
.cssmenu > ul ul > li {
position: relative;
}
.cssmenu ul ul a {
border-bottom: 1px solid rgb(34, 33, 33);
text-transform: uppercase;
font-family: "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif, sans-serif;
color: #ffffff;
font-size: 14px;
background: #000000;
padding: 12px;
display: block;
-webkit-transition: 0.9s;
-moz-transition: 0.9s;
-o-transition: 0.9s;
transition: 0.9s;
}
.cssmenu ul ul a:hover {
background-color: #f0f0f0;
}
.cssmenu ul ul ul {
visibility: hidden;
opacity: 0;
position: absolute;
top: -16px;
left: 206px;
padding: 8px;
background-color: #fafafa;
text-align: left;
width: 160px;
-webkit-transition: all .3s;
-moz-transition: all .3s;
-o-transition: all .3s;
transition: all .3s;
}
.cssmenu ul ul > li:hover > ul {
opacity: 1;
left: 190px;
visibility: visible;
}
.cssmenu ul ul a:hover {
background: #FFFFFF;
color: #000000;
}
<div class="pull-icon">
<a id="pull"></a>
</div>
<div class="cssmenu"> <!-- 设置头部导航栏 -->
<ul>
<li>
<a href="index.jsp">首页</a>
</li>
<li>
<a href="about.jsp">企业简介</a>
</li>
<li>
<a href="newsFrontList.jsp">新闻</a>
</li>
<li>
<a href="content.jsp">核心竞争力</a>
</li>
<li class="last">
<a href="contact.jsp">联系我们</a>
</li>
</ul>
</div>
<div class="clear"></div> <!--清除浮动-->
@media only screen and (max-width: 1920px) {
.header{
padding:2% 12%;
}
}
@media only screen and (max-width: 1680px) {
.header{
padding:2% 8%;
}
}
@media only screen and (max-width: 1440px) {
.header{
padding:2% 2%;
}
}
@media only screen and (max-width: 1366px) {
.header{
padding:2% 2%;
}
.wrap{
width:85%;
}
#fwslider .title {
margin-left: 8%;
}
#fwslider .description {
margin-left: 8%;
}
.image_grid {
width: 21.333%;
}
.grids_1_of_3 img{
max-width: 80%;
}
.w_72{
width:72%;
}
}
@media only screen and (max-width: 1280px) {
.header{
padding:2% 1%;
}
.wrap{
width:85%;
}
.cssmenu > ul > li > a {
padding: 14px 16px;
}
.w_72{
width:72%;
}
}
@media only screen and (min-width: 1024px) {
.pull-icon{
display: none;
}
}
@media only screen and (max-width: 1024px) {
.wrap{
width:95%;
}
.cssmenu > ul > li > a {
padding: 14px 10px;
}
.grids_1_of_3 img{
max-width:90%;
}
.show img{
max-width:100%;
}
.new-nav{
position: absolute;
right: 0;
width: 20%;
height: 100%;
overflow:hidden;
z-index: 105;
transform-origin: 0px 0px 0px;
opacity: 1;
transform: scale(1, 1);
}
.cssmenu {
display: none;
}
.logo {
text-align:left;
position:relative;
}
.logo img{
max-width: 80%;
}
.pull-icon{
float: right;
display: block;
}
.move-slide{
overflow: hidden;
position: relative;
animation: move-slide .5s 1 ease;
-webkit-animation: move-slide .5s 1 ease;
}
.body-slide{
height: 100%;
}
.w_72{
width:100%;
}
.business{
width:97.8%;
}
.clearfix a {
line-height: 60px;
}
}
@media only screen and (max-width: 800px) {
.wrap{
width:95%;
}
.cssmenu {
float: none;
text-align:center
}
.grids_1_of_3 img{
max-width:80%;
}
.show img{
max-width:100%;
}
.business{
width:70%; padding:1% 1%; background:#054688;color:#fff; font-weight:bold;
}
.images_1_of_3 {
width: 40%;
background:none;
padding-left: 10%;
text-align: left;
padding-top:3%;
}
.w_72{
width:72%;
}
.clearfix a {
line-height: 60px;
}
.new-nav{
position: absolute;
width: 20%;
}
}
@media only screen and (max-width: 640px){
.wrap{
width:95%;
}
.grid_1_of_3 {
margin-left: 0%;
}
.main_bg{
background:url(../img/bg.png) repeat #2166a9;
}
.grids_1_of_3 img{
max-width:100%;
padding:3% 0;
}
.w_72{
width:72%;
}
.images_1_of_3 {
width: 40%;
background:none;
padding-left: 7%;
text-align: left;
}
.logo img{
max-width:80%;
}
#pull:after {
position: absolute;
top: 14px;
}
.clearfix a {
line-height: 50px;
}
.new-nav{
position: absolute;
width: 30%;
}
}
@media only screen and (max-width: 480px) {
.wrap{
width:95%;
}
.business{
width:97%;
}
.main_bg{
background:#2166a9;
}
.pull-icon{
float: none;
display: block;
}
.w_72{
width:100%;
}
.clearfix a {
line-height: 40px;
}
.logo img{
max-width:65%;
}
#pull:after {
position: absolute;
top: 8px;
}
.new-nav{
position: absolute;
width: 40%;
}
}
@media only screen and (max-width: 320px) {
.wrap{
width:95%;
}
.grids_1_of_3{
border:none;
border-bottom:1px solid #2384e4;
}
.grids_1_of_3 img{
max-width:100%;
}
.clearfix a {
line-height: 30px;
}
.logo img{
max-width:60%;
}
.new-nav{
position: absolute;
width: 45%;
}
}
@media only screen and (max-width: 280px) {
}
/* ------------------------------- 4. 媒体问题 Max Width 1300, Min Width 720 ------------------------------- */
@media only screen and (min-width:720px) and (max-width: 1300px) {
#fwslider .title { font-size:26px; }
}
/* ------------------------------- 5. 媒体问题 Max Width 719 ------------------------------- */
@media only screen and (max-width:719px) {
#fwslider .timers { display:none; }
}