parallax

html+css面试合集

由 南楼画角 提交于 2020-07-27 04:19:48
1 介绍一下标准的 CSS 的盒子模型？与低版本 IE 的盒子模 型有什么不同的？ 　　标准盒子模型：宽度=内容的宽度（content）+ border + padding + margin 　　低版本 IE 盒子模型：宽度=内容宽度 （content+border+padding）+ margin 2 box-sizing 属性？ 　　用来控制元素的盒子模型的解析模式，默认为 content-box context-box： 　　W3C 的标准盒子模型，设置元素的 height/width 属性指的是 content 部分的高/宽 border-box： 　　IE 传统盒子模型。设置元素的 height/width 属性指的是 border + padding + content 部分的高/宽 3 CSS 选择器有哪些？哪些属性可以继承？ 　　CSS 选择符：id 选择器(#myid)、类选择器(.myclassname)、 标签选择器(div, h1, p)、相邻选择器(h1 + p)、子选择器 （ul > li）、后代选择器（li a）、通配符选择器（*）、属 性选择器（a[rel="external"]）、伪类选择器（a:hover, li:nth-child） 　　可继承的属性：font-size, font-family, color 　　不可继承的样式：border,

Make a div position fixed

由 爷，独闯天下 提交于 2020-07-10 07:33:21
问题 I am making a very simple application where there is a need to implement parallax effect. Things I have tried as of now, -> Placed an image inside a div with class parallax . -> Then placed an overlay div with bootstrap class card item-card card-block with headline, image and some text inside it. .parallax { width: 100%; height: 250px; border-radius: 0; } .item-card { flex-direction: column; box-sizing: border-box; display: flex; place-content: center flex-start; align-items: center; margin:

Make a div position fixed

由 ↘锁芯ラ 提交于 2020-07-10 07:32:10
问题 I am making a very simple application where there is a need to implement parallax effect. Things I have tried as of now, -> Placed an image inside a div with class parallax . -> Then placed an overlay div with bootstrap class card item-card card-block with headline, image and some text inside it. .parallax { width: 100%; height: 250px; border-radius: 0; } .item-card { flex-direction: column; box-sizing: border-box; display: flex; place-content: center flex-start; align-items: center; margin:

Issue with CoordinatorLayout and ImageView that adjusts width while scrolling

由 我是研究僧i 提交于 2020-07-04 06:28:49
问题 I'm attempting to put an ImageView in a CollapsingToolbarLayout in which it takes up the full screen on load and as you scroll the content, the 16x9 resolution image width resizes until the image takes up the full width of the screen. At that point, I'd like the image to parallax with a app:layout_collapseParallaxMultiplier of 0.5 Using this XML Layout: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res

Mobile parallax with fixed background

由 爷，独闯天下 提交于 2020-06-27 02:49:07
问题 I would like to know how to achieve the parallax effect in mobile devices with a fixed background. Is there any plugin available to achieve the same? I could see that background-attachment fixed not working on mobile. For eg: I need to achieve the same effect like the one in this, http://www.celtra.com/ad-formats (the 1st video ad in the mobile) Any help is appreciated. Thanks in advance. 回答1: Here's a quite simple solution without any plugins and jQuery. Works on mobile: http://codepen.io

How do I animate though a PNG sequence using jQuery (either by scrolling or triggered animation) [closed]

由 怎甘沉沦 提交于 2020-01-22 08:08:16
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . More and more I am seeing an effect where pngs are loaded into a series of DIVs (or one div) and then sequenced though frame by frame either based on button click or based on scroll. I've tried to peek at the code, and I understand that javascript is doing the heavy lifting, but I'm still a bit lost, are there

How do I animate though a PNG sequence using jQuery (either by scrolling or triggered animation) [closed]

由 眉间皱痕 提交于 2020-01-22 08:07:09
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . More and more I am seeing an effect where pngs are loaded into a series of DIVs (or one div) and then sequenced though frame by frame either based on button click or based on scroll. I've tried to peek at the code, and I understand that javascript is doing the heavy lifting, but I'm still a bit lost, are there

Change background color multiple times while scrolling down the page

由 故事扮演 提交于 2020-01-15 05:44:12
问题 I'm working on this project where I’m creating a website using parallax scrolling. It's supposed to be one long one pager. As you scroll down the page the background color is supposed to change when you get to each new section of the page. I have spent days searching the web and also here on stackoverflow, but I haven't found anything that works in the way i want it to. I found this script here on stack: var tStart = 100 // Start transition 100px from top , tEnd = 500 // End at 500px , cStart

How to do horizontal parallax scrolling

由 自闭症网瘾萝莉.ら 提交于 2020-01-14 05:38:06
问题 I'm using the latest version of Bootstrap, JQuery, and Skrollr. I would like to have a static background and a couple scenes that occur as you scroll by parallax scrolling. I'm able to make scenes as you scroll but I'm looking for a way to where it appears that you are not moving down the page. I'm looking to make a scene like this image: Notice how it moves right-left but never appears like you are actually scrolling down the page. That's the best I can explain it. Can't seem to find any

Parallax script gets laggy in chrome and on mobile devices

由 丶灬走出姿态 提交于 2020-01-06 09:30:20
问题 I use this code for a parallax effect for a website I'm creating, works great in safari and firefox(mac). But in chrome(mac) it gets laggy, the same for when I try it on iPad and on my iPhone 6. Javascript: var ypos,image; function parallax() { image = document.getElementById('bgImage'); ypos = window.pageYOffset; image.style.top = ypos * .4+ 'px'; } window.addEventListener('scroll', parallax),false; html: <img class="img-responsive" id="bgImage" src="images/bgtopg.jpg"> </div> <div id="box1"
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