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CSS

Centering

I need some help centering everything on my page, this is driving me crazy...

Live View Website

<!DOCTYPE html>
<html>
    <head>
      <meta charset="utf-8">
      <title>Computer Emotions | JS Pet</title>  
      <link rel="stylesheet" href="main.css">
      <script src="emotions.js"></script>
    </head>

    <body>
        <header>
            <button onclick="buttonClickMain(); return false;">Main</button>
            <button onclick="buttonClickHappy(); return false;">Happy</button>
            <button onclick="buttonClickSad(); return false;">Sad</button>
            <button onclick="buttonClickLieSick(); return false;">Sick</button>
            <button onclick="buttonClickScared(); return false;">Scared</button>
            <button onclick="buttonClickAngry(); return false;">Angry</button>
        </header>
        <div>  
            <img id="main" class="center"  src="img/computer.png" alt="" height="500" width="500">
            <img id="happy" class="center" src="img/happy.png" alt="" height="500" width="500">
            <audio id="hap" src="hap.wav" type="audio/wav"></audio>
            <img id="sad" class="center"  src="img/sad.png" alt="" height="500" width="500">
            <audio id="sad" src="sad.wav" type="audio/wav"></audio>
            <img id="sick" class="center"  src="img/sick.png" alt="" height="500" width="500">
            <audio id="sic" src="sic.wav" type="audio/wav"></audio>
            <img id="scared" class="center"  src="img/scared.png" alt="" height="500" width="500">
            <audio id="sca" src="sca.WAV" type="audio/wav"></audio>
            <img id="angry" class="center"  src="img/angry.png" alt="" height="500" width="500">
            <audio id="ang" src="ang.wav" type="audio/wav"></audio>
        </div>       
        <script src="emotions.js"></script>
    </body>
</html>
/**********************************
GENERAL
***********************************/

body {
    font-size: 1.3em;
    max-width: 800px;
    background-color:; 
    color: #222;
    text-align: center;
}

#main {
    visibility: visible;
}

#happy, #sad, #sick, #scared, #angry {
    visibility: hidden;
}

img {
    position: absolute;
}
/**********************************
buttons
***********************************/

header {
    margin: 25px;
    padding: 25px;
}

button {
    width: 100px;
    height: 50px;
    text-align: center;
    text-transform: uppercase;
    margin: 0 auto;
    display: inline;
}

div.center {
    margin: 0 auto;
}

2 Answers

FIGURED IT OUT!!! :)

img {
    margin: 0px;
    position: absolute;
    top: 70%;
    left: 50%;
    margin-right: -50%;
    -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%)
}

Glad you figured it out! Make sure to add your vendor prefixes to cover yourself cross browser wise. 2d transforms are pretty well supported but I would add prefixes just to be safe!

You absolutely need vendor prefixes if you want iDevices to display properly.

Enjoy.

/**********************************
GENERAL
***********************************/

body {
    font-size: 1.3em;
    max-width: 800px;
    background-color:; 
    color: #222;
    text-align: center;
    margin: 0 auto;
}

#main {
    visibility: visible;
}

#happy, #sad, #sick, #scared, #angry {
    visibility: hidden;
}

/**********************************
buttons
***********************************/

header {
    margin: 25px;
    padding: 25px;
}

button {
    width: 100px;
    height: 50px;
    text-align: center;
    text-transform: uppercase;
    margin: 0 auto;
    display: inline;
}

div.center {
    margin: 0 auto;
}

But when I do that it separates my images >> Changes

yeah saw that, hold up.

Its an issue with your JavaScript I think dude.

visibility: hidden hides the element, but it still takes up space in the layout.

Ok Ill keep trouble shooting, thank for your help.