The website contains a seamless amount of data and it is slightly difficult to manage each and every page or links over the period of time. Clicking a bad link or making typo errors is common mishap while surfing. If a user lands up in 404 error page on a site, it gives a bad feeling about a site. Instead, we can let him think in a positive way to proceed with his own corrections or to navigate to other site parts with a sorry message.
It is always a good idea to tell the user that, "nothing much wrong about it, just proceed further and do not just leave away".
How to Customize 404 Error Page on Blogger
Go to Blogger > Dashboard
Go to Settings > Click "Search Preferences"
Click on "Custom page not found"
Insert below codes in it.
404 page
<style type="text/css" >
body {background:white url('http://i.imgur.com/ZDVOQ0T.jpg') 50% 0% no-repeat !important;z-index:10000000;}
.sidebar, footer, .content, .header, .columns-inner, .footer-top {display:none;}
body {min-width: 0px !important;}
</style>
<style type="text/css" >
body {background:white url('http://i.imgur.com/ZDVOQ0T.jpg') 50% 0% no-repeat !important;z-index:10000000;}
.sidebar, footer, .content, .header, .columns-inner, .footer-top {display:none;}
body {min-width: 0px !important;}
</style>
Note: Use your custom image link in above codes.
Any broken link on your Blog site will be redirected to this page. You can also link Home, About Us, Contact Us, Search here words with links. See here