word press登陆页美化

function io_login_header(){
echo '




'. get_bloginfo('name') .'
'. get_bloginfo('description') .'


';
}
function io_login_footer(){
echo '


Copyright © '. get_bloginfo('name') .'
';
}
add_action('login_header', 'io_login_header');
add_action('login_footer', 'io_login_footer');
//登录页面的LOGO链接为首页链接
add_filter('login_headerurl',function() {return esc_url(home_url());});

function custom_login_style(){
$login_color = io_get_option('login_color',array('color-l'=>'','color-r'=>''));
echo '
body{background:'.$login_color['color-l'].';background:-o-linear-gradient(45deg,'.$login_color['color-l'].','.$login_color['color-r'].');background:linear-gradient(45deg,'.$login_color['color-l'].','.$login_color['color-r'].');height:100vh}
.login h1 a{background-image:url('.io_get_option('logo',get_template_directory_uri() .'/images/logo.png').');width:180px;background-position:center center;background-size:'.io_get_option('login_logo_size',160).'px}
.login-container{position:relative;display:flex;align-items:center;justify-content:center;height:100vh}
.login-body{position:relative;display:flex;margin:0 1.5rem}
.login-img{display:none}
.img-bg{color:#fff;padding:2rem;bottom:-2rem;left:0;top:-2rem;right:0;border-radius:10px;background-image:url('.io_get_option('login_ico',get_template_directory_uri() .'/images/login.jpg').');background-repeat:no-repeat;background-position:center center;background-size:cover}
.img-bg h2{font-size:2rem;margin-bottom:1.25rem}
#login{position:relative;background:#fff;border-radius:10px;padding:28px;width:280px;box-shadow:0 1rem 3rem rgba(0,0,0,.175)}
.flex-fill{flex:1 1 auto}
.position-relative{position:relative}
.position-absolute{position:absolute}
.shadow-lg{box-shadow:0 1rem 3rem rgba(0,0,0,.175)!important}
.footer-copyright{bottom:0;color:rgba(255,255,255,.6);text-align:center;margin:20px;left:0;right:0}
.footer-copyright a{color:rgba(255,255,255,.6);text-decoration:none}
#login form{-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;border-width:0;padding:0}
#login form .forgetmenot{float:none}
.login #login_error,.login .message,.login .success{border-left-color:#40b9f1;box-shadow:none;background:#d4eeff;border-radius:6px;color:#2e73b7}
.login #login_error{border-left-color:#f1404b;background:#ffd4d6;color:#b72e37}
#login form p.submit{padding:20px 0 0}
#login form p.submit .button-primary{float:none;background-color:#f1404b;font-weight:bold;color:#fff;width:100%;height:40px;border-width:0;text-shadow:none!important;border-color:none;transition:.5s}
#login form input{box-shadow:none!important;outline:none!important}
#login form p.submit .button-primary:hover{background-color:#444}
.login #backtoblog,.login #nav{padding:0}
@media screen and (min-width:768px){.login-body{width:1200px}
.login-img{display:block}
#login{margin-left:-60px;padding:40px}
}
';
}
add_action('login_head', 'custom_login_style');