如何使div响应屏幕分辨率？

Question

只有当屏幕尺寸等于我的默认屏幕分辨率时，我的div工作正常（占据所有区域）。否则我得到这个

如何使其响应屏幕大小调整？

＆＃13;

＆＃13;

ul{
		list-style: none;		
}

header{
	width: auto;
	background: url(pictures/heading-zebras-2.png) no-repeat 50% 0;
	-webkit-background-size: cover;
	background-size: cover;
	height: 450px;
}

header h1{
	float: left;
	background-color:rgba(0,0,0,0.5);
	padding: 40px 0 34px 43px;
	width: 437px;
}

.tel {
	display: inline-block;
	background-color:rgba(0,0,0,0.5);
	height: 60px;
	padding: 30px 87px 0 0;
	width: cover;
}

.tel li {
	list-style-type: none;
	display: inline;
}

.tel a{
	font: 28pt/0.64 "Consolas", Arial, Helvetica, sans-serif;
	color: white;
	padding: 0 0 0 50px;
	font-size: 87.5%;
}

＆＃13;

<header>
<div><h1><a href="homepage.html"><img src="pictures/header-banner-text.png" alt="banner"></a></h1></div>
    <div class="tel">
		<nav>
			<ul>
			    <li><a href=".html" title="">AMERICAS</a></li>
				<li><a href=".html" title="">AFRICA</a></li>
				<li><a href=".html" title="">EUROPE</a></li>
				<li><a href=".html" title="">AUSTRALIA</a></li>
				<li><a href=".html" title="">ASIA</a></li>
			</ul>
		</nav>
	</div>
</header>

＆＃13;

＆＃13;

＆＃13;

Answer 1

正是您的固定h1宽度造成了这个问题。如果您正在进行响应式设计，请尝试尽可能少地使用固定值。

html,
body {
    min-height: 100%;
    height: 100%;
    width: auto;
    padding: 0;
    margin: 0;
}

ul {
   list-style: none;
}

header {
	width: 100%;
	background: url(pictures/heading-zebras-2.png) no-repeat 50% 0;
	-webkit-background-size: cover;
	background-size: cover;
	height: 450px;
	display: flex;
}

#banner-div {
	flex: 1;
	display: inline-block;
	background-color: rgba(0, 0, 0, 0.5);
}

header h1 {
	width: 100%;
	padding: 40px 0 34px 43px;
	float: left;
}

.tel {
	flex: 4;
	height: 60px;
	width: 100%;
	display: inline-block;
	padding: 30px 87px 0 0;
	background-color: rgba(0, 0, 0, 0.5);
}

.tel li {
	list-style-type: none;
	display: inline;
}

.tel a {
	font: 28pt/0.64 "Consolas", Arial, Helvetica, sans-serif;
	color: white;
	padding: 0 0 0 50px;
	font-size: 87.5%;
}

<header>
	<div id="banner-div">
    	<h1>
			<a href="homepage.html">
				<img src="pictures/header-banner-text.png" alt="banner">
			</a>
		</h1>
	</div>
	<div class="tel">
    	<nav>
        	<ul>
            	<li><a href=".html" title="">AMERICAS</a></li>
            	<li><a href=".html" title="">AFRICA</a></li>
            	<li><a href=".html" title="">EUROPE</a></li>
                <li><a href=".html" title="">AUSTRALIA</a></li>
	            <li><a href=".html" title="">ASIA</a></li>
    	    </ul>
        </nav>
	</div>
</header>

Answer 2

如果我很清楚你想要实现的目标，只需采取以下措施：

1. 你需要将float移到选择器h1中（我们希望保持我们的logo div的高度）
2. 创建div，将导航和徽标合二为一（我给他上课.all），我们想要整个内容的背景。
3. 最后，只从标题h1和.tel
中删除背景颜色

ul{
		list-style: none;		
}
.all {
	background-color:rgba(0,0,0,0.5);
}
header{
	width: auto;
	background: url(pictures/heading-zebras-2.png) no-repeat 50% 0;
	-webkit-background-size: cover;
	background-size: cover;
	height: 450px;
  
}

header h1{
	padding: 40px 0 34px 43px;
	width: 437px;
}

.tel {
	display: inline-block;
	height: 60px;
	padding: 30px 87px 0 0;
	width: cover;
}

.tel li {
	list-style-type: none;
	display: inline;
}

.tel a{
	font: 28pt/0.64 "Consolas", Arial, Helvetica, sans-serif;
	color: white;
	padding: 0 0 0 50px;
	font-size: 87.5%;
}

<header>
  <div class="all">
    <div>
      <h1>
        <a href="homepage.html"><img src="pictures/header-banner-text.png" alt="banner"></a>
      </h1>
    </div>
    <div class="tel">
        <nav>
          <ul>
            <li><a href=".html" title="">AMERICAS</a></li>
            <li><a href=".html" title="">AFRICA</a></li>
            <li><a href=".html" title="">EUROPE</a></li>
            <li><a href=".html" title="">AUSTRALIA</a></li>
            <li><a href=".html" title="">ASIA</a></li>
          </ul>
        </nav>
    </div>
  </div>
</header>