Question

我正在练习HTML和CSS。我有一个与以下代码相关的问题 -

.outer_class{
    		position: absolute;
    		width: 50%;
    		height: 30%;
    		top: 35%;
    		left: 25%;
    		background-color: red;
    	}
    	.inner_class{
    		position: relative;
    		width: 50%;
    		height: 50%;
    		top: 25%;
    		left: 25%;
    		background-color: yellow;
    	}
    	.div_input{
    		position: relative;
    		width: 70%;
    		height: 50%;
    		top: 25%;
    		left: 15%;
    		background-color: blue;
    	}
    	input[type="text"]{
    		box-sizing: border-box;
    		width: 100%;
    		height: 100%;
    
    	}

<!DOCTYPE html>
    <html lang="en">
    <head>
    	<meta charset="utf-8">
    	<meta name="viewport" content="width=device-width, initial-scale=1">
    	<title>Align_Textbox_To_Div_Center</title>
    	<!--++++++++++++++++++++++Bootstrap CDN(Content Delivery Network)++++++++++++++++++++++++++++++-->
    	<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    	<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    </head>
    <body>
    	<div class="outer_class">
    		<div class="inner_class">
    			<div class="div_input">
    				<input type="text" name="username">
    			</div>
    		</div>
    	</div>
    </body>
    </html>

现在，当我将浏览器窗口的大小调整到最小时，会显示一点蓝色div。为什么这样，我该如何解决？

提前致谢！

Answer 1

添加
输入[类型= “文本”] { 位置：绝对的; 边界：无; }

.outer_class{
    		position: absolute;
    		width: 50%;
    		height: 30%;
    		top: 35%;
    		left: 25%;
    		background-color: red;
    	}
    	.inner_class{
    		position: relative;
    		width: 50%;
    		height: 50%;
    		top: 25%;
    		left: 25%;
    		background-color: yellow;
    	}
    	.div_input{
    		position: relative;
    		width: 70%;
    		height: 50%;
    		top: 25%;
    		left: 15%;
            background:blue;
    	}
    	input[type="text"]{
    		box-sizing: border-box;
    		width: 100%;
    		height: 100%;
            position:absolute;
            border:none;
    	}

<!DOCTYPE html>
    <html lang="en">
    <head>
    	<meta charset="utf-8">
    	<meta name="viewport" content="width=device-width, initial-scale=1">
    	<title>Align_Textbox_To_Div_Center</title>
    	<!--++++++++++++++++++++++Bootstrap CDN(Content Delivery Network)++++++++++++++++++++++++++++++-->
    	<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
    	<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

    </head>
    <body>
    	<div class="outer_class">
    		<div class="inner_class">
    			<div class="div_input">
    				<input type="text" name="username">
    			</div>
    		</div>
    	</div>
    </body>
    </html>

当屏幕较小时，输入框不会填满整个空间

1 个答案: