调整屏幕大小时,HTML导航栏下拉框内容无法正确调整大小

Question

在我的CSS代码中,导航栏框会在屏幕宽度更改时调整大小,并且在屏幕小于600px像素数量时也会调整大小.下拉框和内容的大小也像导航栏一样,但是内容的大小无法正确调整.调整屏幕大小时,下拉内容比下拉框略小,但是,当屏幕小于600px时,下拉内容将比框大.

我曾尝试使下拉内容的宽度与框的宽度相同,但是这没有影响.我尝试了所有与内容相关的类.他们都没有影响任何事情.

注意：我更改了背景颜色,以便您可以看到内容与下拉框本身的宽度不同.

            body {
                background-color: blue;
            }
            p {
                color: white;
                font-size: 20px;
                display: inline;
                padding: 20px;
                font-family: arial;
            }
            .navbar {
                list-style-type: none;
                margin: 0;
                padding: 0;
                overflow: hidden;
                background-color: rgb(10,10,10);
                top: 0;
            }
            .navcont {
                margin: 0;
                position: relative;
                float: left;
            }
            .navcont a,.dropbtn {
                margin: 0;
                position: relative;
                display: block;
                color: white;
                font-size: 20px;
                text-align: center;
                padding: 5vh 7vw;
                text-decoration: none;
                border-right: 1px solid rgb(50,50,50);
                border-left: 1px solid rgb(50,50);
            }
            .navcont a:hover {
                transition-duration: 0.3s;
                background-color: rgb(30,30,30);
            }
            .navcont a:active {
                background-color: rgb(9,194,36);
            }
            .sticky {
                position: sticky;
                position: -webkit-sticky;
                top: 0;
                z-index:3
            }
            .dropdown:hover .dropbtn {
                transition-duration: 0.3s;
              background-color: red;
            }
            li.dropdown {
              display: inline-block;
            }
            .dropdown-content {
              display: none;
              position: absolute;
              background-color: #f9f9f9;
              Box-shadow: 0px 8px 16px 0px rgba(0,0.2);
              z-index: 1;
            }
            .dropdown-content a {
              color: black;
              padding: 5vh 7.4vw;
              text-decoration: none;
              display: block;
              text-align: left;
            }
            .dropdown-content a:hover {
                background-color: #f1f1f1
            }
            .dropdown:hover .dropdown-content {
              display: block;
            }
            @media screen and (max-width: 600px) {
                .navcont a {
                    padding: 3vh 3vw;
                }
                .dropdown-content {
                    padding: 3vh 3vw;
                }
                a.dropdown-content {
                    padding: 3vh 3vw;
                    width: 100%;
                }
                .dropbtn {
                    padding: 3vh 3vw;
                }
                div.tr_about {
                    width: 60%;
                }
                div.tl_about {
                    width: 37.5%;
                }
            }

<!doctype html>
<html>
    <head>
        <Meta name="viewport" content="width=device-width,initial-scale=1.0">
    </head>
    <body>
        <div>
            <ul class="navbar">
                <li class="navcont"><a href="index.htm">Home</a></li>
                <li class="navcont"><a href="about.htm">About</a></li>
                <li class="navcont"><a href="purchase.htm">Purchase</a></li>
                <li class="dropdown" style="float: right;">
                    <a href="javascript:void(0)" class="dropbtn">Contact</a>
                    <div class="dropdown-content">
                        <a href="support.htm">Support</a>
                        <a href="faq.htm">FAQ</a>
                    </div>
                </li>
            </ul>
        </div>
    </body>
</html>

如上所述,我希望下拉框内容的宽度与调整屏幕大小时下拉框的宽度相同.但是,我得到的实际结果是内容比下拉框略窄,然后,当屏幕宽度小于600px时,它变得比框宽.

调整屏幕大小时,HTML导航栏下拉框内容无法正确调整大小

猜你在找的HTML相关文章