导航中使用的 CSS 背景被添加到正文顶部

Question

我在开始和后面的导航中有一个标题，我在导航中添加了一个线性渐变背景，但它被添加到了页面顶部。 我正在使用引导框架，我删除了字体文件夹中的所有字形图标并添加了它们的字体真棒字体。帮帮我，这是我的第一个付费项目。 JS 小提琴 - https://jsfiddle.net/m1aeo6nx/

---

HTML

<div class="container">
        <header>
            <div class="col-md-7">
                <img src="img/logo.png" alt="Rashidamonirtrust logo" class="img-responsive">
            </div>

            <div class="col-md-4 col-md-offset-1">
                <ul class="header-icons-list">
                    <li>
                        <a href=""><i class="fa fa-home header-icons"></i></a>
                        <a href=""><i class="fa fa-sitemap header-icons"> </i></a>
                        <a href=""><i class="fa fa-envelope header-icons"> </i></a>
                    </li>

                    <li>
                        <a href="" class="header-icons-text">Home</a>
                        <a href="" class="header-icons-text">Sitemap</a>
                        <a href="" class="header-icons-text">Contact Us</a>
                    </li>

                    <li>
                        <a href=""><img src="img/donate.png" class="img-responsive donate-img" alt="donate "></a>
                    </li>
                </ul>
            </div>
        </header>

         <nav> 
            <ul>

                <li> <a href="#">Home</a> </li>
                <li> <a href="aboutus.html">About Us</a> </li>
                <li> <a href="whoweare.html">Who We Are</a> </li>
                <li> <a href="mission.html">Mission</a> </li>
                <li> <a href="activities.html">Activities</a> </li>
                <li> <a href="gallery.html">Gallery</a> </li>
                <li> <a href="donate.html">Donate</a> </li>
                <li> <a href="sitemap.html">Sitemap</a> </li>
                <li> <a href="contactus.html">Contact Us</a> </li>

            </ul>
        </nav>

    </div><!-- .container -->

---

CSS

<style>

        html{
            background: #E5E5E5;
        }

        body{
            font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
            background: none;
        }

        header .header-icons-list{
            list-style: none;
        }

        header .header-icons{
            color: #191918;
            font-size: 1.2em;
            margin-right: 25%;
            margin-top: 2%;
            list-style: none;
        }

        header .header-icons-text{
            margin-right: 12%;
        }

        header .donate-img{
            margin-top: 6%;

        }


        nav {
                width: 100%;
                height: 40px;
                background: -webkit-linear-gradient(#3f9a15, #388813, #3f9a15, #388813, #3f9a15);
                background: -o-linear-gradient(#3f9a15, #388813, #3f9a15, #388813, #3f9a15);
                background: linear-gradient(#3f9a15, #388813, #3f9a15, #388813, #3f9a15);
                border-radius: 6px;
            }

        nav ul{
            list-style: none;
        }

        nav ul li{
            margin-right: 5%;
             display: inline-block;
        }

    </style>

Answer 1

您的标题仅包含浮动元素，因此您需要对其进行 clearfix。

见What is a clearfix?