
By Default Blogger shows Error page message in a box and its not look Style.
Here I am saying about how to Customize it much better...
Only Custom message [No Style]
If you want to show only a custom message then First Go to updated Blogger InterfaceThen Go to Setting->Search Preferences

Error Message with Stylish 404 images
If you want Colorful Stylish 404 page do the following.- Go to Design->Edit HTML
- Find </head> and copy the below code just above it.
<b:if cond='data:blog.pageType == "error_page"'>
<style type="text/css">.status-msg-wrap{font-size:100%;margin:none;position:static;width:100%}.status-msg-border{display:none}.status-msg-body{padding:none;position:static;text-align:inherit;width:100%;z-index:auto}.status-msg-wrap a{padding:none;text-decoration:inherit}</style>
</b:if>
<style type="text/css">.status-msg-wrap{font-size:100%;margin:none;position:static;width:100%}.status-msg-border{display:none}.status-msg-body{padding:none;position:static;text-align:inherit;width:100%;z-index:auto}.status-msg-wrap a{padding:none;text-decoration:inherit}</style>
</b:if>
- Save the Template
Error Page Style 1

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6_W_K7xzpVrcGngkELzgvDm6IH4s8xrILp62BiEy9gR1RG9d43l4Ay4BnZ_kzbZMDrXLPWByt45dVL01Bm4UOuIAHLoNowV_y8A8Kx4o5Fx1APmgi-kY6_YVNzk-4n0lCeBzRNIVNQKY/s1600/404+error+page+1.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6_W_K7xzpVrcGngkELzgvDm6IH4s8xrILp62BiEy9gR1RG9d43l4Ay4BnZ_kzbZMDrXLPWByt45dVL01Bm4UOuIAHLoNowV_y8A8Kx4o5Fx1APmgi-kY6_YVNzk-4n0lCeBzRNIVNQKY/s1600/404+error+page+1.jpg"/>
Error Page Style 2

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhobxVEYQKelKtLqcE4LKRPHAX6rRnjGP9uAX4iUE8kwgS_KD8mPNKTQGz8mthdu9tkz5u9p91GQFsTrEcrcERRdU36u2vHZ4_W-EGmbS6XOszcq_CYBEYa0Ki3JGnBIM6szC4BSUNZWi0/s1600/404+error+page+2.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhobxVEYQKelKtLqcE4LKRPHAX6rRnjGP9uAX4iUE8kwgS_KD8mPNKTQGz8mthdu9tkz5u9p91GQFsTrEcrcERRdU36u2vHZ4_W-EGmbS6XOszcq_CYBEYa0Ki3JGnBIM6szC4BSUNZWi0/s1600/404+error+page+2.jpg"/>
Error Page Style 3

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVmk5sVBl_vMgJ198B9dqGYGYN3K6XjojrVW87geOsqCb1jskr3ZO61cgz5Syz0BL7E3bOOjHNhRhYCnmvDiGr0-okZStMKB3f4Nev_4h0aQ9WBGLuDVL00tzEa5m-9vSzHOfAZpSmlXk/s1600/404+error+page+4.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVmk5sVBl_vMgJ198B9dqGYGYN3K6XjojrVW87geOsqCb1jskr3ZO61cgz5Syz0BL7E3bOOjHNhRhYCnmvDiGr0-okZStMKB3f4Nev_4h0aQ9WBGLuDVL00tzEa5m-9vSzHOfAZpSmlXk/s1600/404+error+page+4.jpg"/>
Error Page Style 4

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAVJ7UDMHRoqp-U_9mMs5NUa8etNJnKvonumQWvT8CHrgRv9Zy_9CAdBiUE0kHHtvpvoRswcL67vRRVCQA3sH1aZwCeEJzIrcKOrboytCqab0r84bf_6CRuWi3mfR_Qtly0zJV2H6TlJQ/s320/404+error+page+6.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAVJ7UDMHRoqp-U_9mMs5NUa8etNJnKvonumQWvT8CHrgRv9Zy_9CAdBiUE0kHHtvpvoRswcL67vRRVCQA3sH1aZwCeEJzIrcKOrboytCqab0r84bf_6CRuWi3mfR_Qtly0zJV2H6TlJQ/s320/404+error+page+6.jpg"/>
Error Page Style 5

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSR_U5JRN93WGP-UVV8nOETYNOgf_NTf7gV5Ca9vWHCc4BRwF2AWS5vVv1HXVOGDYzAjLOClkuugDK87hSgjqHExefQq_FG1bNIyHAYQjPbOZjRSwxQNbvDkO2GZVyoT1MwHRzTjHxoxs/s1600/404+error+page+7.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSR_U5JRN93WGP-UVV8nOETYNOgf_NTf7gV5Ca9vWHCc4BRwF2AWS5vVv1HXVOGDYzAjLOClkuugDK87hSgjqHExefQq_FG1bNIyHAYQjPbOZjRSwxQNbvDkO2GZVyoT1MwHRzTjHxoxs/s1600/404+error+page+7.jpg"/>
Error Page Style 6

- Go to Setting->Search Preferences
- Copy below code in Custom Page Not Found section [as shown in fig. first]
<h2 style="font-size: 35px;margin: 0;text-align: center;">Oops..! </h2>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTq_V85FK1rq81Rm0exT1J62jQzYcJ-xeqKI5wwlHMNDs1jXjaR1c_-dqViiM2I-g9Up1TBZcjhqduJ0513WUIEggUEy88UYM9WbOUaceEhGICjxeqxUKN9NGANieYHRV4k0Ydt6F-FGU/s1600/404+error+page+3.jpg"/>
<h3 style="font-size:17px;">Sorry,You are trying to reach an invalid page...!<br><a href="/">Click here</a> to go to Homepage <br> Have a nice Day...</h3><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTq_V85FK1rq81Rm0exT1J62jQzYcJ-xeqKI5wwlHMNDs1jXjaR1c_-dqViiM2I-g9Up1TBZcjhqduJ0513WUIEggUEy88UYM9WbOUaceEhGICjxeqxUKN9NGANieYHRV4k0Ydt6F-FGU/s1600/404+error+page+3.jpg"/>
Then Click Save..That all..
First thanks to Bloggerplugins.com for the custom error page code, visit here. Then i made some changes and add beautiful 404 images that i was inspired from HongKiat .
I thinks this article helped you..If any bugs of doubts don't hesitate to ask..do comment...
Like and share...
Post a Comment