Issue
I've been learning CSS and am now practicing by trying to replicate basic websites, but I've stumbled across a problem!
I'm trying to vertically align a box so that it is always in the middle, and will automatically scale if I make the browser vertically smaller. So far I've tried to replicate what I've done horizontally (normally margin: 0 auto;) but it isn't working.
My relevant HTML and CSS so far look like this:
*{
margin: 0;
padding: 0;
box-sizing: border-box;
}
/* Global Values */
html{
font-family: "Arial";
font-size: 16px;
line-height: 1.2;
height: 100%;
}
body{
background-color: #f9f9f9;
height: 100%;
}
.container{
display: block;
min-width: 240px;
max-width: 768px;
width: 100%;
/*----------------------------------------------*/
/* This is to make sure that the container height is always the same size as the browser. */
min-height: 100px;
height: 100%;
/*----------------------------------------------*/
margin: 0 auto;
text-align: center;
border-style: solid;
}
header{
border: solid;
min-height: 100px;
margin: auto 5%;
}<body>
<div class="container">
<header>
<h1>Jon Phillips</h1>
<p>User Interface Designer</p>
<nav class="contact">
<a href="mailto:jon@jonphillips.ca" target="_blank"><p>Contact</p></a>
</nav>
</header>
</div>
</body>I'm showing the borders so I can see what's going on, and am sure that (like horizontal centering) my margins need to be automatic. When I've done this horizontally, it's worked fine...
Does anyone have a recommendation on what to do??
Thanks in advance!
Solution
Sadly the auto margins trick only works horizontally. In CSS3, you can use another trick. You start with top: 50%; and then subtract half the height of your container using transform: translateY(-50%);. The perspective(1px) is just to correct the calculation to a whole pixel and prevent issues in some browsers. See the three lines I've added to your CSS:
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
/* Global Values */
html {
font-family: "Arial";
font-size: 16px;
line-height: 1.2;
height: 100%;
}
body {
background-color: #f9f9f9;
height: 100%;
}
.container {
display: block;
min-width: 240px;
max-width: 768px;
width: 100%;
/*----------------------------------------------*/
/* This is to make sure that the container height is always the same size as the browser. */
min-height: 100px;
height: 100%;
/*----------------------------------------------*/
margin: 0 auto;
text-align: center;
border-style: solid;
}
header {
border: solid;
min-height: 100px;
margin: auto 5%;
position: relative;
top: 50%;
transform: perspective(1px) translateY(-50%);
}<body>
<div class="container">
<header>
<h1>Jon Phillips</h1>
<p>User Interface Designer</p>
<nav class="contact">
<a href="mailto:jon@jonphillips.ca" target="_blank">
<p>Contact</p>
</a>
</nav>
</header>
</div>
</body>Answered By - Racil Hilan Answer Checked By - Candace Johnson (PHPFixing Volunteer)
Posts
0 Comments:
Post a Comment
Note: Only a member of this blog may post a comment.