Center DIV Boxes

assignment for understanding the positioning of div

by Mohammad Faisal

HTML

<div id="wrapper">
    <div class="box1"></div>
    <div class="box2"></div>
    <div class="box3"></div>
    <div class="box4"></div>
    <div class="box5"></div>
</div>

CSS

#wrapper {
    display: block;
    margin: 0 auto;
    margin-top: 5%;
    /*    top: 50%;*/
    width: 500px;
    height: 500px;
    /*    position: absolute;*/
}
#wrapper .box1 {
    float: left;
    outline: 1px solid #f00;
    width: 250px;
    height: 250px;
}
#wrapper .box2 {
    float: left;
    outline: 1px solid #f80;
    width: 250px;
    height: 250px;
}
#wrapper .box3 {
    float: left;
    outline: 1px solid #8f0;
    width: 250px;
    height: 250px;
}
#wrapper .box4 {
    float: left;
    outline: 1px solid #08f;
    width: 250px;
    height: 250px;
}
#wrapper .box5 {
    position: relative;
    width: 250px;
    height: 250px;
    margin: auto;
    top: 25%;
    outline: 3px solid #fac;
}