These bubbles are invisible. They appear only when the reader passes his mouse over a word or a text for which you want to present additional information.
now how to add CSS bubble in a blogger post......Follow the steps..
Step 1: Add customized styles for bubbles in blogger template.
go to blogger dashboard>template>edit>template>and search for the code
]]></b:skin>
and paste the CSS styles just before. You will need 3 styles:..A style (1) for the bubble itself. In the case of the small example above I used the following:
.help-bubble100 {
width: 100px;
height: 18px;
top: -100px;
left: -120px;
padding: 3px 3px 3px 3px;
color: #fff ;
background-color: #228B22 ;
font-size: 10px;
font-family: verdana ;
border: 1px solid #228B22 ;
overflow: hidden;
display: block;
position: absolute; /* important */
visibility: hidden;
opacity: 0;
transition: 0.3s ease-out;
-webkit-transition: 0.3s ease-out;
}
A style (2) for the text that supports the bubble (the bubble will appear when the mouse is over it). In the example I just underlined the text:
.help-needed {
position: relative;
text-decoration:underline ;
}
A style (3) for the bubble when the mouse is over the text (style that triggers the appearance of the bubble):
.help-needed:hover .help-bubble100 {
visibility: visible;
opacity: 1;
top: 0px;
z-index: 50;
transition: 0.8s ease-out;
-webkit-transition: 0.8s ease-out;
}
These styles may be customized to your needs. For instance, to change the size and the color of the bubble, you just have to edit the following property in the style of the bubble itself:
width; height; background-color;.
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