需要帮助定位基于it的元素'；s宽度（Javascript）

我正在开发一个stepper用户界面，而且“前进”的东西似乎工作得很好。从“第3步”之后向后看，定位似乎已关闭。我想我瞄准了错误的元素，但我不确定

感谢您的帮助。代码笔：

HTML

---

您需要在

translate

属性上保留减号

function regress(){

  // Look for the active step
  let activeStep = document.querySelector('.active');

  // Look for the previous step
  let previousStep = activeStep.previousSibling;

  // Get the width of the element   
  stepWidth = stepWidth - previousStep.clientWidth - 32;

  // Step backwards
  stepPlace--;

  // Count the steps
  let stepCount = document.getElementsByClassName('step').length;
  // Calculate the new width of the meter

  meterWidth = ((100/stepCount)*stepPlace);
  // Update the styling to show the new meter width
  progressMeter.style.cssText = "width:"+meterWidth+"%;"
  // Slide the text to the left using the width of the step element
  steps.style.cssText = "transform:translateX(-"+(stepWidth)+"px);" // <-- here
  // Remove the .active class from the active step
  activeStep.classList.remove('active');
  // Add the .active class to the newly active step
  previousStep.classList.add('active');
  console.log(stepWidth);
};

函数回归（）{
//查找活动步骤
让activeStep=document.querySelector（'.active'）；
//查找上一步
让previousStep=activeStep.previousSibling；
//获取元素的宽度
stepWidth=stepWidth-previousStep.clientWidth-32；
//退后一步
台阶--；
//数台阶
让stepCount=document.getElementsByClassName（'step'）.length；
//计算米的新宽度
米宽=（（100/步数）*步位）；
//更新样式以显示新的米宽
progressMeter.style.cssText=“宽度：+meterWidth+”%；”
//使用step元素的宽度向左滑动文本
steps.style.cssText=“transform:translateX（-“+（步长）+”px）；”//成功了！谢谢。
function regress(){

  // Look for the active step
  let activeStep = document.querySelector('.active');

  // Look for the previous step
  let previousStep = activeStep.previousSibling;

  // Get the width of the element   
  stepWidth = stepWidth - previousStep.clientWidth - 32;

  // Step backwards
  stepPlace--;

  // Count the steps
  let stepCount = document.getElementsByClassName('step').length;
  // Calculate the new width of the meter

  meterWidth = ((100/stepCount)*stepPlace);
  // Update the styling to show the new meter width
  progressMeter.style.cssText = "width:"+meterWidth+"%;"
  // Slide the text to the left using the width of the step element
  steps.style.cssText = "transform:translateX("+(stepWidth)+"px);"
  // Remove the .active class from the active step
  activeStep.classList.remove('active');
  // Add the .active class to the newly active step
  previousStep.classList.add('active');
  console.log(stepWidth);
};

function regress(){

  // Look for the active step
  let activeStep = document.querySelector('.active');

  // Look for the previous step
  let previousStep = activeStep.previousSibling;

  // Get the width of the element   
  stepWidth = stepWidth - previousStep.clientWidth - 32;

  // Step backwards
  stepPlace--;

  // Count the steps
  let stepCount = document.getElementsByClassName('step').length;
  // Calculate the new width of the meter

  meterWidth = ((100/stepCount)*stepPlace);
  // Update the styling to show the new meter width
  progressMeter.style.cssText = "width:"+meterWidth+"%;"
  // Slide the text to the left using the width of the step element
  steps.style.cssText = "transform:translateX(-"+(stepWidth)+"px);" // <-- here
  // Remove the .active class from the active step
  activeStep.classList.remove('active');
  // Add the .active class to the newly active step
  previousStep.classList.add('active');
  console.log(stepWidth);
};