Veremos como centrar gadget en el blog, de una manera sencilla y eficaz. <div align="center">Código que se quiere centrar</div>

<div align="right">Código que se quiere a la derecha</div>

<div align="left">Código que se quiere a la izquierda</div>

Tan solo hay que añadir el código donde se indica para alinearlo a cualquier posición.

Pero si queremos centrar  gadget de blogger,  iremos a vista diseño de nuestro blog, y en 

Plantilla, HTML, Ir al Widget, y se nos abre un desplegable, con el nombre de los gadget, elegimos el que queremos centrar, en este caso elegimos el de etiquetas ya que no se puede modificar su Html.

Buscaremos con Ctrol F y pondremos  ]]></b:skin>  y justo encima le pegaremos el siguiente codigo.

#nombrewidget { text-align: center; }

Donde Nombre widget sera nuestro gadget, con estos sencillos pasos, lograremos alinear nuestro gadget

Agregar  este gadget tienes que entrar a Diseño, Añadir gadget, HTML pegar el siguiente código:

<style type="text/css">
.top-commenter-line {margin: 3px 0;}
.top-commenter-line .profile-name-link {padding-left:0;}
.top-commenter-avatar {vertical-align:middle;}
</style>
<script type="text/javascript">
//
// Top Commentators gadget with avatars, by MS-potilas 2012.
// Gets a list of top commentators from all comments, or specified number of days in the past.
// See http://yabtb.blogspot.com/2012/05/top-commenters-gadget-with-avatars.html
//
// CONFIG:
var maxTopCommenters = 8; // how big a list of top commentators
var minComments = 1; // how many comments must top commentator have at least
var numDays = 0; // from how many days (ex. 30), or 0 from "all the time"
var excludeMe = true; // true: exclude my own comments
var excludeUsers = ["Anonymous", "someotherusertoexclude"]; // exclude these usernames
var maxUserNameLength = 42; // 0: don't cut, >4: cut usernames
//
var txtTopLine = '<b>[#].</b> [image] [user] ([count])';
var txtNoTopCommenters = 'No top commentators at this time.';
var txtAnonymous = ''; // empty, or Anonymous user name localized if you want to localize
//
var sizeAvatar = 28;
var cropAvatar = true;
//
var urlNoAvatar = "https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIAUftVxsLE_gwmLZlDzzubtquvvRn1prverMaoVoDyGeMJnvKnAIUBDfz_kS4UOp6aOoNDIevXwcPWnXHntiSe7T4acrXYzM1mWX1szW8KpWX-ctAypikhG9pXDDRc5yXrmMNb17M0D0/"+sizeAvatar+"/avatar_blue_m_96.png"; // http://www.blogger.com/img/avatar_blue_m_96.png resizeable
var urlAnoAvatar = 'http://www.gravatar.com/avatar/00000000000000000000000000000000?d=mm&s=' + sizeAvatar;
var urlMyProfile = ''; // set if you have no profile gadget on page
var urlMyAvatar = ''; // can be empty (then it is fetched) or url to image
// config end
// for old IEs & IE modes:
if(!Array.indexOf) {
Array.prototype.indexOf=function(obj) {
for(var i=0;i<this.length;i++) if(this[i]==obj) return i;
return -1;
}}
function replaceTopCmtVars(text, item, position)
{
if(!item || !item.author) return text;
var author = item.author;
var authorUri = "";
if(author.uri && author.uri.$t != "")
authorUri = author.uri.$t;
var avaimg = urlAnoAvatar;
var bloggerprofile = "http://www.blogger.com/profile/";
if(author.gd$image && author.gd$image.src && authorUri.substr(0,bloggerprofile.length) == bloggerprofile)
avaimg = author.gd$image.src;
else {
var parseurl = document.createElement('a');
if(authorUri != "") {
parseurl.href = authorUri;
avaimg = 'http://www.google.com/s2/favicons?domain=' + parseurl.hostname;
}
}
if(urlMyProfile != "" && authorUri == urlMyProfile && urlMyAvatar != "")
avaimg = urlMyAvatar;
if(avaimg == "http://img2.blogblog.com/img/b16-rounded.gif" && urlNoAvatar != "")
avaimg = urlNoAvatar;
var newsize="s"+sizeAvatar;
avaimg = avaimg.replace(/\/s\d\d+-c\//, "/"+newsize+"-c/");
if(cropAvatar) newsize+="-c";
avaimg = avaimg.replace(/\/s\d\d+(-c){0,1}\//, "/"+newsize+"/");
var authorName = author.name.$t;
if(authorName == 'Anonymous' && txtAnonymous != '' && avaimg == urlAnoAvatar)
authorName = txtAnonymous;
var imgcode = '<img class="top-commenter-avatar" height="'+sizeAvatar+'" width="'+sizeAvatar+'" title="'+authorName+'" src="'+avaimg+'" />';
if(authorUri!="") imgcode = '<a href="'+authorUri+'">'+imgcode+'</a>';
if(maxUserNameLength > 3 && authorName.length > maxUserNameLength)
authorName = authorName.substr(0, maxUserNameLength-3) + "...";
var authorcode = authorName;
if(authorUri!="") authorcode = '<a class="profile-name-link" href="'+authorUri+'">'+authorcode+'</a>';
text = text.replace('[user]', authorcode);
text = text.replace('[image]', imgcode);
text = text.replace('[#]', position);
text = text.replace('[count]', item.count);
return text;
}
var topcommenters = {};
var ndxbase = 1;
function showTopCommenters(json) {
var one_day=1000*60*60*24;
var today = new Date();
if(urlMyProfile == "") {
var elements = document.getElementsByTagName("*");
var expr = /(^| )profile-link( |$)/;
for(var i=0 ; i<elements.length ; i++)
if(expr.test(elements[i].className)) {
urlMyProfile = elements[i].href;
break;
}
}
if(json && json.feed && json.feed.entry && json.feed.entry.length) for(var i = 0 ; i < json.feed.entry.length ; i++ ) {
var entry = json.feed.entry[i];
if(numDays > 0) {
var datePart = entry.published.$t.match(/\d+/g); // assume ISO 8601
var cmtDate = new Date(datePart[0],datePart[1]-1,datePart[2],datePart[3],datePart[4],datePart[5]);
//Calculate difference btw the two dates, and convert to days
var days = Math.ceil((today.getTime()-cmtDate.getTime())/(one_day));
if(days > numDays) break;
}
var authorUri = "";
if(entry.author[0].uri && entry.author[0].uri.$t != "")
authorUri = entry.author[0].uri.$t;
if(excludeMe && authorUri != "" && authorUri == urlMyProfile)
continue;
var authorName = entry.author[0].name.$t;
if(excludeUsers.indexOf(authorName) != -1)
continue;
var hash=entry.author[0].name.$t + "-" + authorUri;
if(topcommenters[hash])
topcommenters[hash].count++;
else {
var commenter = new Object();
commenter.author = entry.author[0];
commenter.count = 1;
topcommenters[hash] = commenter;
}
}
if(json && json.feed && json.feed.entry && json.feed.entry.length && json.feed.entry.length == 200) {
ndxbase += 200;
document.write('<script type="text/javascript" src="http://'+window.location.hostname+'/feeds/comments/default?redirect=false&max-results=200&start-index='+ndxbase+'&alt=json-in-script&callback=showTopCommenters"></'+'script>');
return;
}
// convert object to array of tuples
var tuplear = [];
for(var key in topcommenters) tuplear.push([key, topcommenters[key]]);
tuplear.sort(function(a, b) {
if(b[1].count-a[1].count)
return b[1].count-a[1].count;
return (a[1].author.name.$t.toLowerCase() < b[1].author.name.$t.toLowerCase()) ? -1 : 1;
});
// list top topcommenters:
var realcount = 0;
for(var i = 0; i < maxTopCommenters && i < tuplear.length ; i++) {
var item = tuplear[i][1];
if(item.count < minComments)
break;
document.write('<di'+'v class="top-commenter-line">');
document.write(replaceTopCmtVars(txtTopLine, item, realcount+1));
document.write('</d'+'iv>');
realcount++;
}
if(!realcount)
document.write(txtNoTopCommenters);
}
document.write('<script type="text/javascript" src="http://'+window.location.hostname+'/feeds/comments/default?redirect=false&max-results=200&alt=json-in-script&callback=showTopCommenters"></'+'script>');
</script>