Question

我是关于css的新手（因为你可以看到我的网页有多糟糕），而且我有问题将一些内容放在页面的中心顶部。在我的网页中我也使用bootstrap，因为很多人告诉我它更容易创建好的CSS。该页面是CodeIgniter项目的View，因此，您会看到一些Php代码：

Home_view.php

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
  <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
  <link rel="stylesheet" src="http://fancyapps.com/fancybox/source/jquery.fancybox.css"></script>
  <script  type="text/javascript" src="<?php echo base_url('/Fancybox/source/jquery.fancybox.js'); ?>"></script>
  <script type="text/javascript" src="<?php echo base_url('/Fancybox/lib/jquery.mousewheel-3.0.6.pack.js'); ?>"></script>

   <title>Private Area</title>
   <link rel="stylesheet" href="<?php echo base_url('home_view_style.css');?>"> 
 </head>
 <body>

  <div class="container-fluid">
    <div class="row">
      <div class="col-sm-4" style="background-color:lavender;">
    <img src="<?php echo base_url('Immagini/icon-prof.png'); ?>">
   <h4>Benvenuto <!-- <?php echo $username; ?> --> </h4>
   <a href="home/logout">Logout</a>
   <a class="fancybox" data-fancybox-type="iframe" rel="group" href="http://www.istruzioneformazionelavoro.it/Engine/RAServeFile.php/f/corsi/84/Tabella_corsi_allegatoDD311.pdf">prova</a>
   </div>
</div>
</div>

<div id="loader" style="margin-left: 300px;">

<div class="loader">

<?php echo form_open_multipart('materiale/inserisci');?>

<input type="file" name="userfile"  size="20" />

<br />
<form class="form-inline">
<div class="form-group">
Nome<input type="text" class="form-control" name="Nome"  size="20" />
</div>
<br />
<div class="form-group">
Descrizione<input type="text" class="form-control" name="Descrizione"  size="20" />
</div>
<br />
<label for="tipo_libro"><input id="tipo_libro" type="radio" name="tipo" value="libro" checked/>Libro</label>
<br/>
<label for="tipo_guide"><input id="tipo_guide" type="radio" name="tipo" value="guide"/>Guida</label>
<br/>
<label for="tipo_video"><input id="tipo_video" type="radio" name="tipo" value="video"/>Video</label>
<br/>
<label for="tipo_animazioni"><input id="tipo_animazioni" type="radio" name="tipo" value="animazioni"/>Animazioni</label>
<br/>
<label for="tipo_registrazioni"><input id="tipo_registrazioni" type="radio" name="tipo" value="registrazioni"/>Registrazioni</label>
<br/>

<input type="submit" class="btn" value="Carica" />
<br/>
<br/>
<br/>
<br/>
</form>




  <div>
    <h3><span class="label label-success">Libri</span> </h3>
<?php  


echo "<table>";
echo "<tbody>";
echo "</br>";

 foreach ($libri as $row):
?>
            <tr>
        <td>
          <div>
            </br>
                   <img src="<?php echo base_url('Immagini/book.png'); ?>" />
                   <a href="<?php  echo base_url($row['Url_suffix']) ?>"><?php echo $row['nome']; ?> </a>
             <a href="<?php  echo site_url('libro/elimina/'.$row['ID']) ?>"><img src="<?php echo base_url('Immagini/button_close.png'); ?>"/></a>
            </div>
    </td>
    </tr>
<?php
 endforeach;

       ?>
<?php
       echo "</tbody>";
            echo "</table>";
             ?>
</div>
</br>
</br>
<div>
    <h3><span class="label label-success">Guide</span> </h3>
<?php  


echo "<table>";
echo "<tbody>";
echo "</br>";

 foreach ($guide as $row):
?>
      <tr>
        <td>
          <div>
            </br>
             <img src="<?php echo  base_url('Immagini/guide.png'); ?>" />
             <a href="<?php  echo  base_url('Uploads/10.pdf') ?>"><?php echo $row['nome']; ?> </a> 
             <a href="<?php  echo site_url('guida/elimina/'.$row['ID']) ?>"><img src="<?php echo base_url('Immagini/button_close.png'); ?>"/></a>
            </div>
    </td>
    </tr>
<?php
 endforeach;

       ?>
<?php
       echo "</tbody>";
          echo "</table>";
           ?>
</div>
</br>
</br>
<div>
    <h3><span class="label label-success">Video</span> </h3>
    <?php  


echo "<table>";
echo "<tbody>";
echo "</br>";

 foreach ($video as $row):
?>
      <tr>
        <td>
          <div>
            </br>
             <img src="<?php echo  base_url('Immagini/video.png'); ?>" />
             <a href="<?php  echo  base_url('Uploads/10.pdf') ?>"><?php echo $row['nome']; ?> </a> 
             <a href="<?php  echo site_url('Video_c/elimina/'.$row['ID']) ?>"><img src="<?php echo base_url('Immagini/button_close.png'); ?>"/></a>
            </div>
    </td>
    </tr>
<?php
 endforeach;

       ?>
<?php
       echo "</tbody>";
          echo "</table>";
           ?>
</div>
</br>
</br>
<div>
    <h3><span class="label label-success">Animazioni</span></h3>
    <?php  


echo "<table>";
echo "<tbody>";
echo "</br>";

 foreach ($animazioni as $row):
?>
      <tr>
        <td>
          <div>
            </br>
             <img src="<?php echo  base_url('Immagini/animazioni.png'); ?>" />
             <a href="<?php  echo  base_url('Uploads/10.pdf') ?>"><?php echo $row['nome']; ?> </a> 
             <a href="<?php  echo site_url('animazione/elimina/'.$row['ID']) ?>"><img src="<?php echo base_url('Immagini/button_close.png'); ?>"/></a>
            </div>
    </td>
    </tr>
<?php
 endforeach;

       ?>
<?php
       echo "</tbody>";
          echo "</table>";
           ?>
</div>
</br>
</br>
<div>
    <h3><span class="label label-success">Registrazioni</span> </h3>
    <?php  


echo "<table>";
echo "<tbody>";
echo "</br>";

 foreach ($registrazioni as $row):
?>
      <tr>
        <td>
          <div>
             <img src="<?php echo  base_url('immagini/video.png'); ?>" />
             <a href="<?php  echo  base_url('Uploads/10.pdf') ?>"><?php echo $row['nome']; ?> </a> 
             <a href="<?php  echo site_url('registrazione/elimina/'.$row['ID']) ?>"><img src="<?php echo base_url('Immagini/button_close.png'); ?>"/></a> 
            </div>
    </td>
    </tr>
<?php
 endforeach;

       ?>
<?php
       echo "</tbody>";
          echo "</table>";
           ?>
</div>
</br>
</br>
<div>
</div>


</div>
</div> <!-- end #container-->

 </body>
</html>

我想要有类似的东西：

我尝试了很多方法，比如我试过这个：

#top {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  height: 23px;
text-align:center;
}

并使用div，但遗憾的是没有结果。我要求耐心，因为我是css的新手，我很难理解。最后，如果有人能给我美学建议，我会很高兴，这样我就会成长得更多。

更新2：

home_view_style.css

* {
  box-sizing: border-box
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background-image: url("immagini/Opedia_lab_Logged.png");
  background-size: cover;
  font-family: "Trebuchet MS",Arial;
  font-size: 14px;

}



.btn {
    color: #fff;
    background-color: #84ae6a;
    border-color: #84ae6a;
    position:absolute;  // absolutely positioned
    right: 100%;

}
a{

  text-decoration: none;
}

#log {
    margin: 60px 0px 0px 0px;
}
#log {
    margin-top: 80px;
}
#log {
    margin: 20px;
    background: rgba(90,90,90,0.1);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
}
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

#side-nav {
    padding: 20px 40px;
}
#viewport.open #side-nav, #side-nav {
    width: 25%;
    left: 0px;
}
#side-nav {
    width: 40%;
    left: -40%;
}
#side-nav {
    width: 80%;
    left: -80%;
    -webkit-transition: 0.5s cubic-bezier(0.190,1.000,0.220,1.000);
    transition: 0.5s cubic-bezier(0.190,1.000,0.220,1.000);
}
#side-nav {
    position: absolute;
    min-height: 100%;
    top: 0px;
}

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

#loader{  
     position: absolute;
    top: 0;
    left: 35%;
    width: 30%;
    text-align: center;
    font: 14px ,Arial;
    color: #5C5C5C;
    background: #F2FFED;
    padding: 10px;
}


/*.container {
  width: 100%;
  height: 300px;
  background-color: rgba(255, 255, 255, .5);
  position: absolute;
  top: 20%;
  left: 50%;
  -ms-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
*/
/*
.container {
  width: 100%;
  height: 300px;
  background-color: rgba(255, 255, 255, .5);
  position: absolute;
  top: 20%;
  left: 50%;
  -ms-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.inputs {
  position: absolute;
  top: 75%;
  left: 50%;
  -ms-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}


   .input.submit {
  position: absolute;
  top: 75%;
  right: 70%;
  -ms-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
*/

如何将内容放在首页（css）

0 个答案: