Without seeing your HTML code it is a bit guessing, but I’ll give it a go.
Adding a position: fixed to an element will make it flow above the other content. The element is taken out of the document flow. So the overlapping is natural behavior.
To prevent the content to be hidden, you should add a padding to the parent of the boxes. I’m guessing that when you add the following code, it solves the problem
body {
padding-top: 3rem; /* should be at least the height of the header*/
}
The second question about the position of the header can be fixed by the following code:
/* option 1, add a left position:*/
header {
...
left: 0;
}
/* option 2, remove the width, use left and right position instead: */
header {
...
/* width: 100%; remove this line */
left: 0;
right: 0;
}
Hello I have problem when I make header using html and css. I have my header in fixed position, but the content is covered up my header. I want my content position under header when I run it. One more, I set header width 100% but it shift to the right so it doesn’t cover up whole width on the screen.
[UPDATED]
<style>
@media(min-width: 468px) {
body{
background-color: aqua;
}
.container-1{
display: flex;
/*
align-items: flex-start; -->box 1 lebih sempit ke atas
align-items: flex-end; -->box 1 lebih sempit ke bawah
align-items: center; -->box 1 lebih sempit ke tengah (atas bawah)
flex-direction: column; -->flex box menjadi kolom
*/
}
.container-2{
display: flex;
/*
justify-content: flex-end;
justify-content: flex-start;
*/
justify-content: space-between; /*ada spasi diantara kotak*/
}
}
.container-3{
display: flex;
flex-wrap: wrap;
}
.container-1 div, .container-2 div, .container-3 div{
border:1px #000000 solid;
padding:10px;
}
.box-1{
flex:2;
order:2;
}
.box-2{
flex:1;
order:1;
}
.box-3{
flex: 1;
order:3;
}
.container-2-box{
flex-basis:20%;
}
.container-3-box{
flex-basis: 10%;
}
header{
padding: 0.5rem;
text-align: center;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: beige;
position: fixed;
width: 100%;
margin:0;
}
.whole-container{
margin-top:2.0rem;
}
</style>
<html>
<head>
<meta charset='utf-8'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<title>Flexbox</title>
<meta name='viewport' content='width=device-width, initial-scale=1'>
</head>
<body>
<header>
<h1> Flexbox</h1>
</header>
<div class="whole-container">
<div class="container-1">
<div class="box-1">
<h3>Box 1</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="box-2">
<h3>Box 2</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="box-3">
<h3>Box 3</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
</div>
<div class="container-2">
<div class="container-2-box">
<h3>Box 4</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-2-box">
<h3>Box 5</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-2-box">
<h3>Box 6</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
</div>
<div class="container-3">
<div class="container-3-box">
<h3>Box 7</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-3-box">
<h3>Box 8</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-3-box">
<h3>Box 9</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-3-box">
<h3>Box 10</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-3-box">
<h3>Box 11</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
<div class="container-3-box">
<h3>Box 12</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
</div>
</div>
</body>
</html>
Please add some HTML to your snippet to reproduce the issue.
I have follow you instruction, and edit it a bit. I give .whole-container padding-top: 5.0 rem and header top:0;. Result, header become 100% wide and no space above it. The content isn’t covered up anymore by header. Thank you very much
Yeah, I had to guess it. That’s why I wrote “the parent of the boxes”, which was in your case
