1. Log in to your blogger account
2. Go to Design --> Edit HTML
3. Check in the "Expand Widget Templates"
4. Copy the code below, and paste above </head>
<script src='http://sites.google.com/site/ciudadbloggerfiles/Home/mootools.js' type='text/javascript'/>
<script type='text/javascript'>
window.addEvent('domready', function(){
var el = $('myElement'),
font = $('fontSize');
new Slider(el, el.getElement('.knob'), {
steps: 35, // Tamaño máximo de la letra
range: [8], // El 8 es el tamaño mÃnimo
onChange: function(value){
font.setStyle('font-size', value);
}
}).set(font.getStyle('font-size').toInt());
});
</script>
<style type='text/css'>
div.slider {
width: 97%;
height: 26px;
background: url(http://1.bp.blogspot.com/-uJtP4Udla1s/Tc5VAzHAJSI/AAAAAAAAAZA/ou62rfIOdiA/s1600/slider-bg.gif) no-repeat right top;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
border:1px solid #708B95;
margin-top:40px;
}
div.slider div.knob {
background: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQ-s_9QAJ6JRyZUcrspdkeDg9arzKMLgZgpm5ZyB8DKrEFc73pHxbLiUz19f21j4q63Owk2DeaLe6FIkszCFI9cWOuIrbMcpLq5AWJQEbTUdItneOwfwjyHfnxsna1SZzrwRlluzhh15w/s400/allblogtools-pin.png) no-repeat;
width: 32px;
height: 47px;
margin:-35px 0 0 0;
cursor: move;
}
div#fontSize {
height: 40px;
}
</style>
<script type='text/javascript'>
window.addEvent('domready', function(){
var el = $('myElement'),
font = $('fontSize');
new Slider(el, el.getElement('.knob'), {
steps: 35, // Tamaño máximo de la letra
range: [8], // El 8 es el tamaño mÃnimo
onChange: function(value){
font.setStyle('font-size', value);
}
}).set(font.getStyle('font-size').toInt());
});
</script>
<style type='text/css'>
div.slider {
width: 97%;
height: 26px;
background: url(http://1.bp.blogspot.com/-uJtP4Udla1s/Tc5VAzHAJSI/AAAAAAAAAZA/ou62rfIOdiA/s1600/slider-bg.gif) no-repeat right top;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
border:1px solid #708B95;
margin-top:40px;
}
div.slider div.knob {
background: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQ-s_9QAJ6JRyZUcrspdkeDg9arzKMLgZgpm5ZyB8DKrEFc73pHxbLiUz19f21j4q63Owk2DeaLe6FIkszCFI9cWOuIrbMcpLq5AWJQEbTUdItneOwfwjyHfnxsna1SZzrwRlluzhh15w/s400/allblogtools-pin.png) no-repeat;
width: 32px;
height: 47px;
margin:-35px 0 0 0;
cursor: move;
}
div#fontSize {
height: 40px;
}
</style>
5. Find this code, (maybe different in some templates)
<b:section class='main' id='main' showaddelement='no'>
<b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>
</b:section>
6. Add some code, so the code will be like this<b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>
</b:section>
<span id='fontSize'>
<b:section class='main' id='main' showaddelement='no'>
<b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>
</b:section>
</span>
7. Then, click SAVE TEMPLATE<b:section class='main' id='main' showaddelement='no'>
<b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>
</b:section>
</span>
8. Now, go to Deisgn --> Page Elements --> Add Gadget
9. Choose "HTML/Java Script", and add the code below
<div id="myElement" class="slider"><div class="knob">/div></div>
10. Click SAVE