Hey there, I'm facing an issue with aligning an alert horizontally when a user clicks a button. I've been trying different methods but can't seem to get it right. The goal is to keep the alert within #main. You can check out this fiddle for reference.
Thanks in advance!
Ensure that the #main element has a CSS property of position set to something other than static. Then, apply these rules to the alert:
position: absolute;
left: 50%;
top: 50%;
margin-left: -width;
margin-top: -height;
Remember to substitute width and height with their correct values.
After @Darkwater suggested a CSS solution, I developed a jQuery plugin that still utilizes CSS for quick reuse on multiple objects.
To create a new method in jQuery called center:
$.fn.center = function() {
this.css("position","absolute").css("z-index","5000")
.css("top","50%").css("left","50%")
.css("margin",(-(this.height()/2))+"px 0 0 "+(-(this.width()/2))+"px");
return this;
};
Simply bind it to your object (such as your alert div#message) right after the .show() method:
$("#message").show().center();
This will center the div both vertically and horizontally.
NOTE: Remember to call the center() method immediately after the show() or any similar method that displays the element on the DOM, as jQuery may not handle hidden elements properly.
Your code structure and CSS positioning need some adjustments. Instead of using position: fixed;, consider using position: relative; for #main and position: absolute; for #message. Also, make sure to shift your message div within #main div.
When centering a div, remember to calculate the value for top: value (-)minus height of the div to achieve vertical center alignment.
#message{
visibility: hidden;
position: absolute;
top: 50%;
text-align: center;
}
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