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Custom Admin | Type: CSSCustom Login Logo

Add or modify styles and upload path as necessary to accommodate logo.

function custom_login_logo() { 
echo '<style type="text/css"> 
.login h1 a { background-image:url(/wp-content/uploads/logo.png) !important; width:300px!important; background-size:250px!important; height:100px!important } 
.login h1 { line-height:1!important; margin:0!important; height:100px!important; }
</style>'; 
} 
add_action('login_head', 'custom_login_logo');