CSS:使孩子在父母的反应中迅速反应

Question

所以我不使用任何CSS框架(例如Bootstrap(将响应率从开箱即用，这就是为什么我在做出响应式布局时遇到了麻烦。

请参阅JSBIN

我基本上是基于浏览器窗口大小自动尺寸的彩色盒子，例如应该根据窗口大小自动缩小或生长。父母内部的五颜六色的盒子应该始终在水平行中，但应该能够像此示例一样调整其宽度和高度。

我尝试使用flex-wrap: nowrap;，但没有解决问题：(

请注意，五颜六色的盒子正在使用 position:absolute，而父母的位置为 relative。我还通过JavaScript将left CSS属性添加到这些框中，以更改其位置，以进行滑动动画。

function Carousel(options) {
  options = options || {};
  // options vars
  let speed = options.speed || 1; // animation speed in seconds
  let width = options.width || 200;
  let height = options.height || 100;
  let space = options.space || 30;
  // other vars
  let container = document.querySelector('.carousel-container .carousel');
  let slides = container.querySelectorAll('.carousel-item');
  let curSlide = null;
  let prevSlide = null;
  let nextSlide = null;
  if (areSlidesPresent()) {
    setup();
  }
  // functions //
  function setup() {
    // we assume first slide to be current one as per UI requirements
    //slides[0].classList.add("current");
    curSlide = slides[0];
    // we assume second slide to be next as per UI requirements
    nextSlide = slides[1];
    // we assume last slide to be prev as per UI requirements
    prevSlide = slides[slides.length - 1];
    // position elements horizontally        
    positionSlides();
  }
  function areSlidesPresent() {
    return slides.length > 0;
  }
  this.getCurrentSlide = function() {
    return curSlide;
  }
  this.getNextSlide = function() {
    return nextSlide;
  }
  this.getPreviousSlide = function() {
    return prevSlide;
  }
  this.setNextSlide = function() {
    if (areSlidesPresent()) {
      let allSlides = [];
      // build new order of slides
      allSlides.push(nextSlide);
      // middle ones
      for (let i = 2; i < slides.length; i++) {
        allSlides.push(slides[i]);
      }
      allSlides.push(curSlide);
      // now add to DOM after cleaning previous slide order
      for (let i = 0; i < allSlides.length; i++) {
        container.appendChild(allSlides[i]);
      }
      slides = allSlides;
      setup();
    }
  }
  this.setPreviousSlide = function() {
    if (areSlidesPresent()) {
      let allSlides = [];
      // build new order of slides
      allSlides.push(prevSlide);
      allSlides.push(curSlide);
      // middle ones
      for (let i = 1; i < slides.length - 1; i++) {
        allSlides.push(slides[i]);
      }
      // now add to DOM after cleaning previous slide order
      for (let i = 0; i < allSlides.length; i++) {
        container.appendChild(allSlides[i]);
      }
      slides = allSlides;
      setup();
    }
  }
  function positionSlides() {
    curSlide.style.marginLeft = '0px';
    for (let i = 0; i < slides.length; i++) {
      slides[i].querySelector('.carousel-content').style.width = (width) + 'px';
      slides[i].querySelector('.carousel-content').style.height = (height) + 'px';
      let elementWidth = getStyle(nextSlide, 'width');
      if (i === 0) {
        slides[i].style.zIndex = -10;
        //slides[i].style.opacity = '1';
        slides[i].querySelector('.carousel-content').style.width = (width + 50) + 'px';
        slides[i].querySelector('.carousel-content').style.height = (height + 50) + 'px';
      } else {
        slides[i].style.zIndex = 0;
        //slides[i].style.opacity = '0.7';
      }
      if (i > 0) {
        slides[i].style.marginLeft = (space * 2) + 'px';
        elementWidth = parseInt(elementWidth, 10) + space;
      }
      slides[i].style.transition = speed + 's';
      slides[i].style.left = (elementWidth * i) + 'px';
    }
  }
  function getStyle(el, prop) {
    return window.getComputedStyle(el, null).getPropertyValue(prop)
      .replace('px', '')
      .replace('em', '');
  }
}
// utility
function log(text) {
  console.log(text);
}
var options = {
  speed: 1, // animation speed
  width: 250, // slide width
  height: 150, // slide height
  space: 25 // space in px between slides
};
var carousel = new Carousel(options);
function selectCurrent() {
  log(carousel.getCurrentSlide());
}
function selectNext() {
  carousel.setNextSlide();
}
function selectPrev() {
  carousel.setPreviousSlide();
}

.carousel-container {
  width: auto;
  height: auto;
  margin: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel {
  height: 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.carousel .carousel-item {
  position: absolute;
  transition: transform .5s ease-in-out;
  color: #fff;
  margin-left: 10px;
  -webkit-box-reflect: below 10px -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(70%, transparent), to(rgba(255, 255, 255, 0.2)));
}
.carousel .carousel-item:first-child .carousel-content {
  opacity: 1;
}
.carousel .carousel-item .carousel-title {
  font-size: 24px;
  text-align: center;
}
.carousel .carousel-item .carousel-content {
  font-size: 18px;
  font-weight: bold;
  border: 1px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}
/* temp css below */
body {
  background: #2C374A;
  padding-top: 150px;
}
.navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 150px;
}
.button {
  color: #444;
  padding: 10px;
  width: 60px;
  cursor: pointer;
  background: #CCC;
  text-align: center;
  font-weight: bold;
  border-radius: 5px;
  border-top: 1px solid #FFF;
  box-shadow: 0 5px 0 #999;
  transition: box-shadow 0.1s, top 0.1s;
  margin: 10px;
}
.button:hover,
.button:hover {
  color: #000;
}
.button:active,
.button:active {
  top: 104px;
  box-shadow: 0 1px 0 #999;
}

<div class="carousel-container">
  <div class="carousel">
    <div class="carousel-item">
      <div class="carousel-title">Make a Call</div>
      <div class="carousel-content" style="background:#0E6DE8;border:10px solid #78B1FA">Slide One</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Message</div>
      <div class="carousel-content" style="background:#D90080;border:10px solid #E357A9">Slide Two</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Picture</div>
      <div class="carousel-content" style="background:#FEC601;border:10px solid #FFDD64">Slide Three</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Video</div>
      <div class="carousel-content" style="background:#3DB365;border:10px solid #90E0AB">Slide Four</div>
    </div>
  </div>
</div>
<div class="navigation">
  <div class="button" onclick="selectNext()">Next</div>
  <div class="button" onclick="selectCurrent()">Select</div>
  <div class="button" onclick="selectPrev()">Prev</div>
</div>

Answer 1

问题是：

1. 宽度在您的JS中进行了硬编码，因此，如果宽度在px中，则无法响应。
2. 通过将position:absolute应用于您的carousel-item，它迫使孩子们开箱即用。

我做了什么：

1. 摆脱了JS
的静态宽度和其他功能
2. 从carousel-item删除position:absolute

让我知道这是否是您的期望。

function Carousel(options) {
  options = options || {};
  // options vars
  let speed = options.speed || 1; // animation speed in seconds
  // let width = options.width || 100;
  let height = options.height || 100;
  let space = options.space || 30;
  // other vars
  let container = document.querySelector('.carousel-container .carousel');
  let slides = container.querySelectorAll('.carousel-item');
  let curSlide = null;
  let prevSlide = null;
  let nextSlide = null;
  if (areSlidesPresent()) {
    setup();
  }
  // functions //
  function setup() {
    // we assume first slide to be current one as per UI requirements
    //slides[0].classList.add("current");
    curSlide = slides[0];
    // we assume second slide to be next as per UI requirements
    nextSlide = slides[1];
    // we assume last slide to be prev as per UI requirements
    prevSlide = slides[slides.length - 1];
    // position elements horizontally        
    positionSlides();
  }
  function areSlidesPresent() {
    return slides.length > 0;
  }
  this.getCurrentSlide = function() {
    return curSlide;
  }
  this.getNextSlide = function() {
    return nextSlide;
  }
  this.getPreviousSlide = function() {
    return prevSlide;
  }
  this.setNextSlide = function() {
    if (areSlidesPresent()) {
      let allSlides = [];
      // build new order of slides
      allSlides.push(nextSlide);
      // middle ones
      for (let i = 2; i < slides.length; i++) {
        allSlides.push(slides[i]);
      }
      allSlides.push(curSlide);
      // now add to DOM after cleaning previous slide order
      for (let i = 0; i < allSlides.length; i++) {
        container.appendChild(allSlides[i]);
      }
      slides = allSlides;
      setup();
    }
  }
  this.setPreviousSlide = function() {
    if (areSlidesPresent()) {
      let allSlides = [];
      // build new order of slides
      allSlides.push(prevSlide);
      allSlides.push(curSlide);
      // middle ones
      for (let i = 1; i < slides.length - 1; i++) {
        allSlides.push(slides[i]);
      }
      // now add to DOM after cleaning previous slide order
      for (let i = 0; i < allSlides.length; i++) {
        container.appendChild(allSlides[i]);
      }
      slides = allSlides;
      setup();
    }
  }
  function positionSlides() {
    curSlide.style.marginLeft = '0px';
    for (let i = 0; i < slides.length; i++) {
      // slides[i].querySelector('.carousel-content').style.width = (width) + 'px';
      slides[i].querySelector('.carousel-content').style.height = (height) + 'px';
      let elementWidth = getStyle(nextSlide, 'width');
      if (i === 0) {
        slides[i].style.zIndex = -10;
        //slides[i].style.opacity = '1';
        // slides[i].querySelector('.carousel-content').style.width = (width + 50) + 'px';
        slides[i].querySelector('.carousel-content').style.height = (height + 50) + 'px';
      } else {
        slides[i].style.zIndex = 0;
        //slides[i].style.opacity = '0.7';
      }
      if (i > 0) {
        slides[i].style.marginLeft = (space * 2) + 'px';
        // elementWidth = parseInt(elementWidth, 10) + space;
      }
      slides[i].style.transition = speed + 's';
      // slides[i].style.left = (elementWidth * i) + 'px';
    }
  }
  function getStyle(el, prop) {
    return window.getComputedStyle(el, null).getPropertyValue(prop)
      .replace('px', '')
      .replace('em', '');
  }
}
// utility
function log(text) {
  console.log(text);
}
var options = {
  speed: 1, // animation speed
  width: 250, // slide width
  height: 150, // slide height
  space: 25 // space in px between slides
};
var carousel = new Carousel(options);
function selectCurrent() {
  log(carousel.getCurrentSlide());
}
function selectNext() {
  carousel.setNextSlide();
}
function selectPrev() {
  carousel.setPreviousSlide();
}

.carousel-container {
  height: auto;
  margin: 25px;
  display: flex;
}
.carousel {
  flex: 1;
  height: 100%;
  width: 100vh;
  /*   overflow:hidden; */
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel .carousel-item {
  transition: transform .5s ease-in-out;
  color: #fff;
  flex: 1;
  margin-left: 10px;
  -webkit-box-reflect: below 10px -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(70%, transparent), to(rgba(255, 255, 255, 0.2)));
}
.carousel .carousel-item:first-child .carousel-content {
  opacity: 1;
}
.carousel .carousel-item .carousel-title {
  font-size: 24px;
  text-align: center;
}
.carousel .carousel-item .carousel-content {
  font-size: 18px;
  font-weight: bold;
  border: 1px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}
/* temp css below */
body {
  background: #2C374A;
}
.navigation {
  display: flex;
  align-items: center;
  justify-content: center;
}
.button {
  color: #444;
  padding: 10px;
  width: 60px;
  cursor: pointer;
  background: #CCC;
  text-align: center;
  font-weight: bold;
  border-radius: 5px;
  border-top: 1px solid #FFF;
  box-shadow: 0 5px 0 #999;
  transition: box-shadow 0.1s, top 0.1s;
  margin: 10px;
}
.button:hover,
.button:hover {
  color: #000;
}
.button:active,
.button:active {
  box-shadow: 0 1px 0 #999;
}

<div class="navigation">
  <div class="button" onclick="selectNext()">Next</div>
  <div class="button" onclick="selectCurrent()">Select</div>
  <div class="button" onclick="selectPrev()">Prev</div>
</div>
<div class="carousel-container">
  <div class="carousel">
    <div class="carousel-item">
      <div class="carousel-title">Make a Call</div>
      <div class="carousel-content" style="background:#0E6DE8;border:10px solid #78B1FA">Slide One</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Message</div>
      <div class="carousel-content" style="background:#D90080;border:10px solid #E357A9">Slide Two</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Picture</div>
      <div class="carousel-content" style="background:#FEC601;border:10px solid #FFDD64">Slide Three</div>
    </div>
    <div class="carousel-item">
      <div class="carousel-title">Send a Video</div>
      <div class="carousel-content" style="background:#3DB365;border:10px solid #90E0AB">Slide Four</div>
    </div>
  </div>
</div>