html - 无法找到填充的原因 - CSS

Question

我已经尝试过，但未能找到顶部 ul 元素左侧填充的原因(NEW ACTIVITY、ACTIVITY PROFILE、ACTIVITY DETAILS)。

出于某种原因，它向左填充了 40 像素，我不知道为什么! JSFiddle 包含我的元素中可能会干扰表单样式的所有 CSS 代码，因此请查看 JSFiddle 以获得更广阔的视野。

/*form styles*/
#msform {
	width: 400px;
	margin: 50px auto;
	text-align: center;
	position: relative;
}
#msform fieldset {
	background: white;
	border: 0 none;
	border-radius: 3px;
	box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.4);
	padding: 20px 30px;
	box-sizing: border-box;
	width: 80%;
	margin: 0 10%;
	
	/*stacking fieldsets above each other*/
	position: relative;
}
/*Hide all except first fieldset*/
#msform fieldset:not(:first-of-type) {
	display: none;
}
/*inputs*/
#msform input, #msform textarea {
	padding: 15px;
	border: 1px solid #ccc;
	border-radius: 3px;
	margin-bottom: 10px;
	width: 100%;
	box-sizing: border-box;
	font-family: montserrat;
	color: #2C3E50;
	font-size: 13px;
}
/*buttons*/
#msform .action-button {
	width: 100px;
	background:#70ffac;
	font-weight: bold;
	color: white;
	border: 0 none;
	border-radius: 1px;
	cursor: pointer;
	padding: 10px 5px;
	margin: 10px 5px;
}
#msform .action-button:hover, #msform .action-button:focus {
  background: #8ff3b9;
}
/*headings*/
.fs-title {
	font-size: 15px;
	text-transform: uppercase;
	color: #2C3E50;
	margin-bottom: 10px;
}
.fs-subtitle {
	font-weight: normal;
	font-size: 13px;
	color: #666;
	margin-bottom: 20px;
}
/*progressbar*/
#progressbar {
	margin-bottom: 30px;
	overflow: hidden;
	/*CSS counters to number the steps*/
	counter-reset: step;
}
#progressbar li {
	list-style-type: none;
	text-transform: uppercase;
	font-size: 9px;
	width: 33.33%;
	float: left;
	position: relative;
}
#progressbar li:before {
	content: counter(step);
	counter-increment: step;
	width: 20px;
	line-height: 20px;
	display: block;
	font-size: 10px;
	color: #fff;
	background: #baffd7;
	border-radius: 3px;
	margin: 0 auto 5px auto;
}
/*progressbar connectors*/
#progressbar li:after {
	content: '';
	width: 100%;
	height: 2px;
	background: #baffd7;
	position: absolute;
	left: -50%;
	top: 9px;
	z-index: -1; /*put it behind the numbers*/
}
#progressbar li:first-child:after {
	/*connector not needed before the first step*/
	content: none; 
}
/*marking active/completed steps green*/
/*The number of the step and the connector before it = green*/
#progressbar li.active:before,  #progressbar li.active:after{
	background: #70ffac;
	color: white;
}

<form id="msform">
  <ul id="progressbar">
    <li class="active">new Activity</li>
    <li>Activity Profile</li>
    <li>Activity Details</li>
  </ul>
  <fieldset>
    <h2 class="fs-title">Create new activity</h2>
    <h4 class="fs-subtitle">Describe</h4>
    <input type="text" name="email" placeholder="Title" />
    <textarea name="description" placeholder="Description"></textarea>
    <input type="button" name="next" class="next action-button" value="Next" />
  </fieldset>
</form>

这是 JSFiddle:https://jsfiddle.net/2fasm5gs/

有人可以指导我吗？

Answer 1

这是因为浏览器中的默认样式。

将 ul 的 (#progressbar) 填充重置为 0 应该可以修复。

答案在这里: https://stackoverflow.com/a/29307477/6790632