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p {
    padding:0px;
    margin:0;
    background:#ccc;
}
.horizontal-fix-parent {
    position:relative;
    height:200px;
    background:#00bcd4;
}
.horizontal-fix-child {
    position:absolute;
    left:50%;
    -webkit-transform:translateX(-50%);
    -ms-transform:translateX(-50%);
    -o-transform:translateX(-50%);
    transform:translateX(-50%);
}
.vertical-fix-child {
    position:absolute;
    top:50%;
    -webkit-transform:translateY(-50%);
    -ms-transform:translateY(-50%);
    -o-transform:translateY(-50%);
    transform:translateY(-50%);
}
.horizontal-vertical-child {
    position:absolute;
    top:50%;
    left:50%;
    -webkit-transform:translate(-50%,-50%);
    -ms-transform:translate(-50%,-50%);
    -o-transform:translate(-50%,-50%);
    transform:translate(-50%,-50%);
}
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