


This article mainly introduces CSS3 media queries combined with jQuery to implement responsive navigation in detail. It has certain reference value. Interested friends can refer to it
Purpose:
To implement a responsive navigation when the screen width When it is greater than 700px, the effect is as follows:
When the screen width is less than 700px, the navigation becomes a small button, and after clicking it, a menu slowly pulls down:
Ideas:
1. In order After binding events on the menu, and without adding extra nodes to the DOM, the navigation that appears in the large screen and the drop-down navigation in the small screen must be one.
So I chose to position the navigation absolutely.
2. The default navigation list appears. When the screen width is less than 700px, it hides, and the position is set. When the screen width is greater than 700px, it appears. Alternatively, the default navigation list is hidden, it appears on the right when the screen width is larger than 700px, and hidden when smaller than 700px.
Problem:
At the beginning, I chose to appear by default, and then a problem occurred - as long as the button is pressed, the navigation list will never appear again after the screen is zoomed in.
The code is as follows:
<p class="nav-box"> <ul class="nav"> <li><a href="javascript:void(0);" class="toHome active">Home</a></li> <li><a href="javascript:void(0);" class="toPort">Portfolio</a></li> <li><a href="javascript:void(0);" class="toCont">Contact</a></li> </ul> <a href="javascript:void(0);" class="nav-btn">...</a> </p>
.nav-box { position: relative; } .nav-btn { display: none; color: #DE6B73; float: right; line-height: 20px; margin: 35px 0; } .nav { display: block ; border-top: none; position: absolute; right: 0; } @media(max-width:700px){ .nav-btn{ display: inline-block; } } @media(max-width:700px){ .nav { display: none; top: 80px; background-color: #F79C9C; border-top: 1px solid #FFF; line-height: 60px; } }
window.onload=function(){ $(".nav-btn").click(function(){ $(".nav").slideToggle(500); }); }
So I thought there was something wrong with my thinking, so I changed to the default way of hiding him. The result is still the same, once the button is pressed, he will never appear again. So I started to doubt jQuery.
Solution:
Then I found in F12 that after I pressed the button, it would have a style like this:
It turned out that all this was caused by slideToggle, which set the content of the element. Linked styles make elements hidden. The style set in this method has the highest priority among the three methods, so the block set in CSS is of no use at all.
To solve this problem, you can use js, or you can use a higher priority method: !important.
If you choose to use !important, you need to set the navigation list to be hidden by default, otherwise it will never be hidden. .
The final CSS code is as follows:
.nav { display: none; position: absolute; right: 10%; top: 80px; background-color: #F79C9C; border-top: 1px solid #FFF; line-height: 60px; } .nav-btn { display: none; color: #DE6B73; float: right; line-height: 20px; margin: 35px 0; } @media(max-width:700px){ .nav-btn{ display: inline-block; } } @media(min-width:700px){ .nav { display: block !important; border-top: none; top: 15px; right: 0; } }
Summary:
It is very dangerous to use a framework without truly understanding its principles.
I then tried jQuery’s .css() method, which also changed the style of elements inline.
It seems that we need to study how jQuery works so that we can understand its behavior when applying it.

两种方法:1、利用display属性,只需给元素添加“display:none;”样式即可。2、利用position和top属性设置元素绝对定位来隐藏元素,只需给元素添加“position:absolute;top:-9999px;”样式。

怎么制作文字轮播与图片轮播?大家第一想到的是不是利用js,其实利用纯CSS也能实现文字轮播与图片轮播,下面来看看实现方法,希望对大家有所帮助!

自适应布局又称“响应式布局”,是指可以自动识别屏幕宽度、并做出相应调整的网页布局;这样的网页能够兼容多个不同的终端,而不是为每个终端做一个特定的版本。自适应布局是为解决移动端浏览网页而诞生的,能够为使用不同终端的用户提供很好的用户体验。

实现方法:1、使用“:active”选择器选中鼠标点击图片的状态;2、使用transform属性和scale()函数实现图片放大效果,语法“img:active {transform: scale(x轴放大倍数,y轴放大倍数);}”。

css3中的动画效果有变形;可以利用“animation:动画属性 @keyframes ..{..{transform:变形属性}}”实现变形动画效果,animation属性用于设置动画样式,transform属性用于设置变形样式。

在css3中,可以利用“animation-timing-function”属性设置动画旋转速度,该属性用于指定动画将如何完成一个周期,设置动画的速度曲线,语法为“元素{animation-timing-function:速度属性值;}”。

css3线性渐变可以实现三角形;只需创建一个45度的线性渐变,设置渐变色为两种固定颜色,一个是三角形的颜色,另一个为透明色即可,语法“linear-gradient(45deg,颜色值,颜色值 50%,透明色 50%,透明色 100%)”。

本篇文章带大家一起深入了解一下CSS3中的新特性::target-text 选择器,聊聊该选择器的作用和使用方法,希望对大家有所帮助!


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