Apa itu Error 404?
Error 404 yaitu sebuah halaman yang tidak ditemukan di suatu web dan server.
Berikut cara menambahkan custom error 404 di blogger :
1. Buka Blogger Anda > Klik Template > Edit html > Tambahkan arahan di bawah ini di atas arahan </head>
<b:if cond='data:blog.pageType == "error_page"'> <style type='text/css'> /* CSS Error 404 */ #oopss{background:#222;text-align:center;margin-bottom:50px;font-weight:400;font-size:20px;position:fixed;width:100%;height:100%;line-height:1.5em;z-index:9999;left:0}#error-text{top:30%;position:relative;font-size:40px;color:#eee}#error-text a{color:#eee}#error-text a:hover{color:#fff}#error-text p{color:#eee;margin:70px 0 0}#error-text i{margin-left:10px}#error-text p.hmpg{margin:40px 0 0}#error-text span{position:relative;background:#ef4824;color:#fff;font-size:300%;padding:0 20px;border-radius:5px;font-weight:bolder;transition:all .5s;cursor:pointer;margin:0 0 40px}#error-text span:hover{background:#d7401f;color:#fff;-webkit-animation:jelly .5s;-moz-animation:jelly .5s;-ms-animation:jelly .5s;-o-animation:jelly .5s;animation:jelly .5s}#error-text span:after{top:100%;left:50%;border:solid transparent;content:'';height:0;width:0;position:absolute;pointer-events:none;border-color:rgba(136,183,213,0);border-top-color:#ef4824;border-width:7px;margin-left:-7px}.back:active{-webkit-transform:scale(.95);-moz-transform:scale(.95);transform:scale(.95);background:#f53b3b;color:#fff}.back:hover{background:#4c4c4c;color:#fff}.back{text-decoration:none;background:#5b5a5a;color:#fff;padding:10px 20px;font-size:20px;font-weight:700;line-height:normal;text-transform:uppercase;border-radius:3px;-webkit-transform:scale(1);-moz-transform:scale(1);transform:scale(1);transition:all .5s ease-out}@-webkit-keyframes jelly{from,to{-webkit-transform:scale(1,1);transform:scale(1,1)}25%{-webkit-transform:scale(.9,1.1);transform:scale(.9,1.1)}50%{-webkit-transform:scale(1.1,.9);transform:scale(1.1,.9)}75%{-webkit-transform:scale(.95,1.05);transform:scale(.95,1.05)}}@keyframes jelly{from,to{-webkit-transform:scale(1,1);transform:scale(1,1)}25%{-webkit-transform:scale(.9,1.1);transform:scale(.9,1.1)}50%{-webkit-transform:scale(1.1,.9);transform:scale(1.1,.9)}75%{-webkit-transform:scale(.95,1.05);transform:scale(.95,1.05)}}@media only screen and (max-width:640px){#error-text span{font-size:200%}#error-text a:hover{color:#fff}} </style> </b:if>
2. Selanjutnya tambahkan arahan di bawah ini sempurna di bawah arahan <body>
<b:if cond='data:blog.pageType == "error_page"'> <div id='oopss'> <div id='error-text'> <span>404</span> <p>PAGE NOT FOUND</p> <p class='hmpg'><a expr:href='data:blog.homepageUrl' class="back">Back To Home</a></p> </div> </div> </b:if>