我有一张 224w x 400h 的图片。 漂浮在该图像上的是一个简单的表格。
我的目标是使包含该图像的 div + 叠加形式在移动设备上查看时占据整个屏幕。我尝试了各种组合,使用媒体 header 、视口(viewport)元和我从类似的堆栈溢出问题中拼凑而成的大量 css。我目前不知道下一步该做什么。
我也尝试过至少将 img+form 居中,但我放弃了它,因为它相对于移动设备屏幕尺寸不居中。 (而是将 div 推离屏幕并创建水平滚动条,就好像它认为移动设备屏幕非常宽一样。)
如何更改以便移动设备用我指定的 div 填满屏幕? (或者至少,将 fullsrceen div 类置于移动设备的较小屏幕上。)非常感谢任何帮助!
当前 html
<!DOCTYPE html>
<html>
<head>
<title>Reg</title>
<meta name="viewport" content="target-densitydpi=device-dpi">
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0">
<link href="Form.css" rel="stylesheet">
</head>
<body>
<div class="fullscreen" id="fullscreen">
<div style="position:relative">
<img src="fbg.png" alt="" />
<div style="position:absolute;left:0;top:0;">
<div id"=main">
<form method="post" action="SMA_Send2.php">
<label for="form">
First Name: <input type="text" maxlength="20" name="Fname" required><br />
Last Name: <input type="text" maxlength="36" name="Lname" required><br />
Student ID: <input type="number" maxlength="4" name="Sid" required><br />
Email: <input type="email" maxlength="36" name="Email" required placeholder="Enter a valid email address"><br />
Device Type:<br />
<select name="Dtype">
<option value="iPad">iPad</option>
<option value="iPhone">iPhone</option>
<option value="AndroidTablet">Android Tablet</option>
<option value="AndroidPhone">Android Phone</option></select><br />
Mac Address: <input type="text" maxlength="17" name="Mac" pattern="([0-9A-F]{2}[:-]){5}([0-9A-F]{2})" title="Use Format: 1A:B2:3C:D4:5E:6F" required placeholder="Ex: 1A:B2:3C:D4:5E:6F"><br />
<br />
<input type="submit" value="submit" name="submit">
</label>
</form>
</div>
</div>
</div>
</div>
</body>
</html>
当前的CSS
#fullscreen {
height: 100vh;
width: 100vw;
position:fixed;
top:0;
left:0;
}
@media screen and (orientation:portrait) { height: 100vh;
width: 100vw; }
@media screen and (orientation:landscape) {height: 100vh;
width: 100vw; }
label {
display: inline-block;
position: relative;
float: left;
text-align: left;
margin-right: 20px;
width: 190px;
padding: 5px;
}
input, textarea {
padding: 9px;
border: solid 1px #E5E5E5;
outline: 0;
font: normal 13px/100% Verdana, Tahoma, sans-serif;
width: 190px;
background: -webkit-gradient(linear, left top, left 25, from(#FFFFFF), color-stop(4%, #EEEEEE), to(#FFFFFF));
background: -moz-linear-gradient(top, #FFFFFF, #EEEEEE 1px, #FFFFFF 25px);
box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-moz-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-webkit-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
}
input:hover, textarea:hover,
input:focus, textarea:focus {
border-color: #C9C9C9;
-webkit-box-shadow: rgba(0, 0, 0, 0.15) 0px 0px 8px;
}
select {
padding: 9px;
border: solid 1px #E5E5E5;
outline: 0;
height: 36px;
width: 210px;
font: normal 13px/100% Verdana, Tahoma, sans-serif;
background: -webkit-gradient(linear, left top, left 25, from(#FFFFFF), color-stop(4%, #EEEEEE), to(#FFFFFF));
background: -moz-linear-gradient(top, #FFFFFF, #EEEEEE 1px, #FFFFFF 25px);
box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-moz-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-webkit-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
}
.form label {
margin-left: 10px;
color: #999999;
}
.submit input {
width: 210px;
padding: 9px 15px;
background: #617798;
border: 1;
font-size: 14px;
color: #FFFFFF;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
}
input[type=submit] {
border: 1; /*rewriting standard style, it is necessary to be able to change the size*/
height: 35px;
width: 210px;
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
margin: 0;
}
input[type=number] {
-moz-appearance: textfield;
}
最佳答案
如果您不尝试使用绝对和相对定位,我认为这会更容易。如果你想让图像和表格居中,试试这个:
#fullscreen {
height: 100vh;
width: 100vw;
border: 1px solid black;
background-image:url(http://placehold.it/224x400);
background-repeat: no-repeat;
background-position: center top;
}
#formDiv {
margin: auto;
width: 224px;
padding-left: 12px;
}
label {
display: inline-block;
position: relative;
float: left;
text-align: left;
margin-right: 20px;
width: 190px;
padding: 5px;
}
input, textarea {
padding: 9px;
border: solid 1px #E5E5E5;
outline: 0;
font: normal 13px/100% Verdana, Tahoma, sans-serif;
width: 190px;
background: -webkit-gradient(linear, left top, left 25, from(#FFFFFF), color-stop(4%, #EEEEEE), to(#FFFFFF));
background: -moz-linear-gradient(top, #FFFFFF, #EEEEEE 1px, #FFFFFF 25px);
box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-moz-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-webkit-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
}
input:hover, textarea:hover,
input:focus, textarea:focus {
border-color: #C9C9C9;
-webkit-box-shadow: rgba(0, 0, 0, 0.15) 0px 0px 8px;
}
select {
padding: 9px;
border: solid 1px #E5E5E5;
outline: 0;
height: 36px;
width: 210px;
font: normal 13px/100% Verdana, Tahoma, sans-serif;
background: -webkit-gradient(linear, left top, left 25, from(#FFFFFF), color-stop(4%, #EEEEEE), to(#FFFFFF));
background: -moz-linear-gradient(top, #FFFFFF, #EEEEEE 1px, #FFFFFF 25px);
box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-moz-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
-webkit-box-shadow: rgba(0,0,0, 0.1) 0px 0px 8px;
}
.form label {
margin-left: 10px;
color: #999999;
}
.submit input {
width: 210px;
padding: 9px 15px;
background: #617798;
border: 1;
font-size: 14px;
color: #FFFFFF;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
}
input[type=submit] {
border: 1; /*rewriting standard style, it is necessary to be able to change the size*/
height: 35px;
width: 210px;
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
margin: 0;
}
input[type=number] {
-moz-appearance: textfield;
}
<div class="fullscreen" id="fullscreen">
<div id="formDiv">
<form method="post" action="SMA_Send2.php">
First Name: <input type="text" maxlength="20" name="Fname" required><br />
Last Name: <input type="text" maxlength="36" name="Lname" required><br />
Student ID: <input type="number" maxlength="4" name="Sid" required><br />
Email: <input type="email" maxlength="36" name="Email" required placeholder="Enter a valid email address"><br />
Device Type:<br />
<select name="Dtype">
<option value="iPad">iPad</option>
<option value="iPhone">iPhone</option>
<option value="AndroidTablet">Android Tablet</option>
<option value="AndroidPhone">Android Phone</option></select><br />
Mac Address: <input type="text" maxlength="17" name="Mac" pattern="([0-9A-F]{2}[:-]){5}([0-9A-F]{2})" title="Use Format: 1A:B2:3C:D4:5E:6F" required placeholder="Ex: 1A:B2:3C:D4:5E:6F"><br />
<br />
<input type="submit" value="submit" name="submit" />
</form>
</div>
</div>
关于html - 强制 div 在移动设备上占据整个屏幕? CSS, HTML,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28730593/