Custom the login page

function new_login_logo() {                                                             /* 自訂登入畫面LOGO */ 
     echo '<style type="text/css">.login h1 a { background-image:url('.get_template_directory_uri().'/assets/img/logo.svg) !important; background-size: contain!important; width:320px!important; }.login {background-image:url('.get_template_directory_uri().'/assets/img/bg-login.jpg); background-size: cover!important; background-position: 100% 50%;} #loginform,#lostpasswordform{border-radius: 20px;} .login #nav{display:none;} </style>';
}
add_action('login_head', 'new_login_logo' );


function custom_loginlogo_url($url) { return get_bloginfo('url'); }                     /* 變更自訂登入畫面上LOGO的連結 */ 
add_filter( 'login_headerurl', 'custom_loginlogo_url' );


function put_my_title(){ return ('Company Name'); }                                        /* 變更自訂登入畫面上LOGO的Hover所出現的標題 */
add_filter('login_headertext', 'put_my_title');