从html代码中的样式标记获得奇怪的缩进

Question

我对HTML有点生疏，我的测试网站样式代码遇到了问题。我在<h4>标记后得到一个非常奇怪的缩进，我不确定问题是什么。我将包含整个div和屏幕截图，以便更好地排除故障。

div style="color: #777;background-color:white; text-align: justify; margin-left: 20px; margin-right: 20px;">
<h1 style= "text-align: center;"> My Experience</h1>

        <span>
                <h4 style= "text-align: right;">April 2014- Present</h4>
                <h4>General Motors</h4>
                <h5>Senior Program Manager</h5>
                <p>

                    <ul>
                        <li>
                        End to end responsibility for the success of
                        the critical global IT projects that will evolve and transform
                        GM’s business processes and capabilities. 
                        </li>
                        <li>
                        Management of the IT project life cycle from definition to deployment,
                        through engagement with senior GM leaders, cross-functional stakeholders,
                        and development teams
                        </li>
                    </ul>

                </p>

            <p>
            <h4 style= "text-align: right;">May 2012- March 2014</h4>
            <h4>Xtivia, INC</h4>
            <h5>PMO Manager</h5>

                <ul>
                    <li>
                    Provided direct leadership, organization and coordination to drive the delivery of complex portal implementations to customers in multiple sectors. 
                    </li>
                    <li>
                    Guided project stakeholders in defining requirements, project scope and ensuring the effective utilization of team members. 
                    </li>
                    <li>
                    Managed PMO’s functional activities, encompassing program planning, personnel management and product delivery.
                    </li>
                </ul>
            </p>


        <h4 style = "float: left;">University of Nebrasksa - Omaha</h4><h4 style= "float: right;">June 2010 - Present</h4>
        </br>
        <h5>Adjunct Professor</h5>

        <p>
            Instructor for undergraduate Project Management and Cyber Ethics courses. 
        </p>
        <span><h4 style= "float: left;">Bellevue University</h4><h4 style= "float: right;">June 2010 - Present</h4></span>
        <br>
        <h5>Adjunct Professor</h5>

        <p>
            Instructor for graduate and undergraduate Computer Information Systems and Management Information Systems courses.
        </p>
    </span>

我确信它很简单，但就像我之前说过的那样，我生锈了。）

Answer 1

这是您的代码的正确（大部分）版本

h1 {
  text-align: center;
}
h2 {
  font-size: 1.2em;
  }
h2 span {
  float: right;
font-size: 0.75em;

}
#container {
  color: #777;
  text-align: justify; 
  margin: 0 2em;
}

<div id="container">
<h1>My Experience</h1>
  <h2>General Motors <span class="date">April 2014- Present</span></h2>
<h3>Senior Program Manager</h3>
<ul>
  <li>End to end responsibility for the success of
      the critical global IT projects that will evolve and transform
      GM’s business processes and capabilities. 
    </li>
    <li>
      Management of the IT project life cycle from definition to deployment,
      through engagement with senior GM leaders, cross-functional stakeholders,
      and development teams
    </li>
  </ul>

<h2>Xtivia, INC <span class="date">May 2012- March 2014</span></h2>
<h3>PMO Manager</h3>

<ul>
  <li>
    Provided direct leadership, organization and coordination to drive the delivery of complex portal implementations to customers in multiple sectors. 
  </li>
  <li>
    Guided project stakeholders in defining requirements, project scope and ensuring the effective utilization of team members. 
  </li>
  <li>
    Managed PMO’s functional activities, encompassing program planning, personnel management and product delivery.
  </li>
</ul>

<h2>University of Nebrasksa - Omaha <span class="date">June 2010 - Present</span></h2>
<h3>Adjunct Professor</h3>

<p>
  Instructor for undergraduate Project Management and Cyber Ethics courses. 
</p>
<h2>Bellevue University <span class="date">June 2010 - Present</span></h2>
<h3>Adjunct Professor</h3>

<p>
  Instructor for graduate and undergraduate Computer Information Systems and Management Information Systems courses.
</p>
</div>