HEX

File: /www/wwwroot/cece.umchkw.com/index.php
<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>计算弧的半径长度</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
 <style type="text/css" media="all">
body{
	background-color:midnightblue
	
}
*{
	margin: 0;
	padding: 0;
}

form {
	width: 100%;
	max-width: 640px;
	margin: 0 auto;
	/* height: 460px; */
	background-color: rgba(255,245,245,0.3);
	/* border-radius: 10px; */
	/* border: 1px solid rgba(255,0,0,0.4); */
	position: fixed;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	margin: auto;
	padding: 40px;
	box-sizing: border-box;
}

form .content {
	border-radius: 20px;
	background-color: rgba(255,245,245,0.5);
}

form .content .top h3{
	line-height: 60px;
	text-align: center;
	border-bottom: 1px solid rgb(94 91 152);
}

form .content .center .line {
	line-height: 50px;
	
}


form .content .center {
	border-bottom: 1px solid rgb(94 91 152);
	text-align: center;
	
}

form .content .center label {
	display: inline-block;
	width: 100%;
	text-align: center;
}

form .content .center .line:not(.not) label{
	letter-spacing: 6px;
	font-size: 20px;
}

form .content .center .not label{
	padding-right: 16px;
	box-sizing: border-box;
}

form .content .center input {
    text-indent: 8px;
	width: 90%;
	/* margin: 0 40px; */
	line-height: 50px;
	border-radius: 6px;
	outline: none; 
	border: 1px solid rgb(94 91 152);
	font-size: 25px;
}

form .content .center input:focus{
	border: 1px solid lawngreen;
}

form .content .center input:visited{
	border: 1px solid green;
}

form .content .center input:valid+span{
	visibility: hidden;
}

form .content .center input:invalid+span{
	visibility: visible;
}

form .content .center span{
	display: inline-block;
	width: 200px;
	text-align: left;

}

form .content .bottom {
	line-height: 80px;
	text-align: center;

}

form .content .bottom input {
	width: 80%;
	height: 50px;
	background-color: rgb(8 23 221 / 30%);
	border: none;
	outline: none;
	border-radius: 10px;
	font-size: 22px;
	font-weight: 700;
	color: #fff;
}

form .content .bottom input:hover{
	background-color: #E149AF;
	box-shadow: 0 2px 0 1px rgba(225,73,175,0.5);
	
}

form .content .bottom input:active{
	box-shadow: 0 1px 0 1px rgba(12,135,162,1);
}



 </style>
</head>
<body>
  <?php
  	if($_POST){
			    $zhixiang=$_POST['zhixiang'];
			    $gonggao=$_POST['gonggao'];
  	}
			    ?>
  
<form action="" method="post">
	
	<div class="content">
		
		<div class="top">
			
			<h3 style="font-size: 25px;
	font-weight: 700;">计算弧的半径长度</h3>
			
		</div>
		
		<div class="center">
			
			<div class="line">
				<label>弧两边点的直线长度</label>
				<input type="" name="zhixiang"   autocomplete="off" value="<?php echo $zhixiang;?>" required="required">
				
			</div>
		
		<div class="line">
			<label>拱高</label>
			<input type="" name="gonggao"  autocomplete="off"  value="<?php echo $gonggao;?>" required="required">
			
		</div>	
			
	<br>
		</div>
		
		<div class="bottom">
			<input type="submit" value="开始计算">
		</div>
		
		<div class="center">
		    				
			<div class="line not">
			<?php
			if($_POST){
			    $zhixiang=$_POST['zhixiang'];
			    $gonggao=$_POST['gonggao'];
			    
			    $banjing=(($zhixiang/2)*($zhixiang/2)+($gonggao*$gonggao))/(2*$gonggao);
			    echo '
			    <label style="letter-spacing: 10px;">结果:弧的半径长度</label>
		         	<input type="" name="" id="" value="'.$banjing.'" style="    text-align: center;">
			    ';
			}?>
				
		 	</div>	
			<br>
		</div>
		
	</div>

</form>

</body>
</html>