CSS canvas and navigation bar positioning
Question
I've a navigation bar which is fixed position on the top, and a canvas. The top of my canvas gets hidden behind the navigation bar. I don't want to make canvas position absolute. I've to get my canvas below the navigation bar and in the center horizontally. To center it I put it in tag center>, but I can't get it below navigation bar, How can I get it done? my style sheet:
CSS
#nav{
position:fixed;
margin:0px;
display:block;
}
#canvas{
text-align:center;
background-color:transparent;
border: 2px solid black;
display:block;
}
HTML
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<link href="IV.css" rel="stylesheet" type="text/css">
</head>
<body>
<nav>
<div id = "toolbar_effects">
<input type="image" src="Icons/imageviewer.svg" width="50" height="50" id="Imageviewer2"class = "s">
<input type="image" src="Icons/effect-grayscale.svg" width="50" height="50" id="grayscale"class = "s">
</div>
</nav>
<center><canvas id = "canvas" width="600" height="400"><center>
</canvas>
</body>
</html>
2 answers
solution1
0 2015-03-13 14:29:02
Use z index in css on your navigation https://css-tricks.com/almanac/properties/z/z-index/
Without that by default elements that are later in code are higher in structure.
solution2
0 ACCPTED 2015-03-13 20:55:41
Set padding-top to the body. And don't use center tags it is deprecated. It works http://jsfiddle.net/soov7k2k/ . You probably forgot to position your navbar properly! position: fixed is half of the work. You need to add top:0 and left:0 to your navbar otherwhise it won't work. See the fiddle.
body {
padding-top: 100px;//Or whatever the height of your navbar is.
}
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