css3

问题 I am working on a page for my portfolio website that displays various services. There's a large box in the center column of three columns. On the left and right of the central box are columns of 3 boxes each. Each box is a clickable link that then changes the content in the central block. I'm trying to make the boxes on the sides of the central box grow in height on mouseover and shrink on mouseout using jQuery .animate() . My problem is that the boxes are very spastic. When you mouseout of

问题 I am working on a page for my portfolio website that displays various services. There's a large box in the center column of three columns. On the left and right of the central box are columns of 3 boxes each. Each box is a clickable link that then changes the content in the central block. I'm trying to make the boxes on the sides of the central box grow in height on mouseover and shrink on mouseout using jQuery .animate() . My problem is that the boxes are very spastic. When you mouseout of

问题 I am trying to create animation with this arrow that will move up and down and also rotate or change its direction on 0% and 100% . But what I got so far is that arrow will rotate for sec on 100% and then return back to previous direction. So basically what I am trying to do is, arrow should point up on its way up and point down on return or on its way down . Can I do this with just CSS animations? DEMO On way up arrow should have this direction and on way down this one Also I want to animate

问题 This is a similar question to Can you make a flexbox child expand to fit parent but not contents? , however, that solution doesn't work for me. I have a layout such that the whole page should always fit on screen (between header and footer), and if contents is too large, then its container should scroll. (Basically the last example from: https://css-tricks.com/snippets/css/a-guide-to-flexbox/) I already tried the solution from the question I linked above: #chat { background-color: #ceecf5;

问题 I am using some style I found on this website to create an underline slide in effect. Please see jsfiddle for example. As you can see, the underline comes in from left to right. How would I go about making another line on top of the text, which transitions in from right to left? Could I simply adapt my current code snippet, or would I have to use a different method entirely? .cmn-t-underline { position: relative; color: #ff3296; } .cmn-t-underline:after { display: block; position: absolute;

问题 I am using some style I found on this website to create an underline slide in effect. Please see jsfiddle for example. As you can see, the underline comes in from left to right. How would I go about making another line on top of the text, which transitions in from right to left? Could I simply adapt my current code snippet, or would I have to use a different method entirely? .cmn-t-underline { position: relative; color: #ff3296; } .cmn-t-underline:after { display: block; position: absolute;

问题 generally html list is created, <select size=6 name="sel" id="sel"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="4">5</option> <option value="4">6</option> <option value="4">7</option> <option value="4">8</option> <option value="4">9</option> </select> but it is displaying as, 1 2 3 4 5 instead i want to be it as, 1 2 3 4 5 6 7 8 9 ......... or 1 3 5 7 2 4 6 8 how to display it without using any "pluggins"

问题 I need to draw two curves, using CSS. I have tried to assemble some div s, using CSS border-radius to draw the curved panel. But the result is bad. Any better arithmetic? 回答1: As I had mentioned in comments earlier, please do not use CSS for achieving complex curves and shapes. While it is still possible to use CSS to achieve them (using transform + pseudo-elements like shown in this thread or using box-shadows in this thread), the process is very complex and you can't get much control over

问题 This question already has answers here : CSS animation delay in repeating (9 answers) Closed 5 years ago . I am rotating a circular <div> infinity in 360 degrees using css animation. After each rotation, I want a halt or delay of 5 seconds before next rotation. How can I achieve it? Here's a live example Code is as following. CSS .circle{ position: absolute; top: 4; right: 4; height: 21px; width: 21px; border-radius: 50%; background: #00B5F9; color: white; font-family: varela round; font-size

问题 Is it possible to nest or group selectors together? For example I have the following css: .feature > *:hover > .info, .feature > .select > .info {bottom:0;} .feature > *:hover > .img, .feature > .select > .img, .feature > *:hover > .link, .feature > .select > .link {top:-25px;bottom:51px;} Is it possible to group many of the selectors in a way similar to the following pseudo CSS (I'm using brackets, but I realise this doesn't work) : .feature > (*:hover,.select) > .info {bottom:0;} .feature >