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在样式表CSS之间切换

[英]Switch between stylesheets css

好的,我是这个网站的新手,甚至是html,css和javascript的新手。

就像标题中所说的,我需要在样式表之间进行切换的帮助。

我做了我需要的一切,但有一件事情,在样式表之间切换可以在Internet Explorer中完美运行,但不能在chrome中运行。

铬发生了什么? 我也可以切换为chrome,一切正常,但整个背景颜色不会改变,只有查看的部分变为黑色,然后您需要向下滚动以更改页面其余部分的颜色。

寻求帮助会很好。

这是代码。

 function darkTheme() { var theme = document.getElementById('lightTheme'); theme.href = "styleSheetDarkTheme.css"; } function lightTheme() { var theme = document.getElementById('lightTheme'); theme.href = "styleSheetLightTheme.css"; } 
 #option_list { height: 40px; width: 500px; margin: auto; } #option1 { position: relative; display: inline-block; height: 40px; width: 100px; margin-left: 0.7291666666666666em; margin-right: 0.7291666666666666em; background-clip: content-box; text-align: center; cursor: pointer; font: bold 19px serif; -webkit-transition: all 0.2s; -moz-transition: all 0.2s; -ms-transition: all 0.2s; -o-transition: all 0.2s; transition: all 0.2s; } .themes { display: block; padding: 20px; transition: 0.2s; } #option1:hover { background-color: rgb(84, 84, 84); color: white; } #dropDownMenu { position: fixed; padding-left: 0px; background-color: rgb(84, 84, 84); width: 190px; margin-top: 17px; display: none; color: #fff; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; } #option1:hover #dropDownMenu { display: block; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; } .themes:hover { background-color: rgba(3, 3, 3, 0.51); } 
 <head> <link id="lightTheme" rel="stylesheet" type="text/css" href="styleSheetLightTheme.css"> </head> <body> <div id="option_list"> <div id="option1"> Theme <ul id="dropDownMenu"> <li onclick="darkTheme()" class="themes">Dark the</li> <li onclick="lightTheme()" class="themes">Light theme</li> </ul> </div> </div> </body> 

错误在你lightTheme

function lightTheme() {
  var theme = document.getElementById('lightTheme');
  theme.href = "styleSheetLightTheme.css";
}

lighttheme功能中,更改可变theme

function lightTheme() {
  var theme = document.getElementById('lightTheme');
  theme.href = "styleSheetLightTheme.css";
}

lighttheme功能什么也没做。

function lightTheme() {
  var theme = document.getElementById('lightTheme');
  theme.href = "styleSheetLightTheme.css";
}

function darkTheme() {
  var theme = document.getElementById('darkTheme');
  theme.href = "styleSheetDarkTheme.css";
}

这个设置cookie的有效期为1天,因此它将检查样式设置cookie,如果存在,则相应地切换样式表。 否则,它将使用默认样式。

<head>
<link rel="stylesheet" type="text/css" title="light" href="styleLightTheme.css">
<link rel="alternate stylesheet" type="text/css" title="dark" href="styleDarkTheme.css">

</head>
<body onload="set_style_from_cookie()">
  <div id="option_list">
    <div id="option1">
      Theme
      <ul id="dropDownMenu">
        <li onclick="switch_style('dark'); return false;" class="themes" id="dark">Dark Theme</li>
        <li onclick="switch_style('light'); return false;" class="themes" id="light">Light Theme</li>
      </ul>
    </div>
  </div>
</body>

脚本:

var style_cookie_name = "style" ;
var style_cookie_duration = 30 ;

function switch_style ( css_title )
{
var i, link_tag ;
  for (i = 0, link_tag = document.getElementsByTagName("link") ;
    i < link_tag.length ; i++ ) {
    if ((link_tag[i].rel.indexOf( "stylesheet" ) != -1) &&
      link_tag[i].title) {
      link_tag[i].disabled = true ;
      if (link_tag[i].title == css_title) {
        link_tag[i].disabled = false ;
      }
    }
    set_cookie( style_cookie_name, css_title,
      style_cookie_duration );
  }
}
function set_style_from_cookie()
{
  var css_title = get_cookie( style_cookie_name );
  if (css_title.length) {
    switch_style( css_title );
  }
}

function set_cookie ( cookie_name, cookie_value,
    lifespan_in_days, valid_domain )
{

    var domain_string = valid_domain ?
                       ("; domain=" + valid_domain) : '' ;
    document.cookie = cookie_name +
                       "=" + encodeURIComponent( cookie_value ) +
                       "; max-age=" + 60 * 60 *
                       24 * lifespan_in_days +
                       "; path=/" + domain_string ;
}

function get_cookie ( cookie_name )
{
    // 
    var cookie_string = document.cookie ;
    if (cookie_string.length != 0) {
        var cookie_value = cookie_string.match (
                        '(^|;)[\s]*' +
                        cookie_name +
                        '=([^;]*)' );
        return decodeURIComponent ( cookie_value[2] ) ;
    }
    return '' ;
}

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