Vertically centering an element with CSS - html

Question

I am trying to vertically center content in my div.
HTML:
<div id="header">
<div class="col-xs-1 col-sm-1 col-md-1 col-lg-1" id="logo-img-div"><img id="logo-img" src="logo.png"></div>
<div class="col-xs-3 col-sm-3 col-md-3 col-lg-3" id="logo-text">Text</div>
</div>
CSS:
#media only screen and (min-width: 768px) {
.col-sm-1 {width: 8.33%; float: left;}
.col-sm-2 {width: 16.66%; float: left;}
.col-sm-3 {width: 25%; float: left;}
.col-sm-4 {width: 33.33%; float: left;}
.col-sm-5 {width: 41.66%; float: left;}
.col-sm-6 {width: 50%; float: left;}
.col-sm-7 {width: 58.33%; float: left;}
.col-sm-8 {width: 66.66%; float: left;}
.col-sm-9 {width: 75%; float: left;}
.col-sm-10 {width: 83.33%; float: left;}
.col-sm-11 {width: 91.66%; float: left;}
.col-sm-12 {width: 100%; float: left;}
}
* {
color: #2c2c2c;
height: 100%;
width: 100%;
margin: 0 !important;
font-family: 'Raleway';
}
#header {
height: 10%;
background-color: #2c2c2c;
color: #c4c3c3;
font-family: 'title';
}
#logo-img {
height: 80%;
width: auto;
}
#logo-img-div {
}
#logo-text {
color: #c4c3c3;
}
I want to center content of logo-img-div and logo-text, but keep those two divs on the left of header content. I've found many similar questions but none of the solutions worked.

Answer 1

You are applying properties to all selectors with *.
http://www.w3schools.com/cssref/css_selectors.asp
Since you have a margin of 0, you are unable to align your div elements.
Normally, you could use
margin-left or right and move a number of px's or em's...

Answer 2

Try to remove the margin for (*) elements. This does not allow you to align them since the margin is the distance between all other elements including the body itself. Or you could have a margin only for left and right:
* {
color: #2c2c2c;
height: 100%;
width: 100%;
margin-left: 0 !important;
margin-right: 0 !important;
font-family: 'Raleway';
}
If you are trying to vertically center your div with an id of 'header' try this:
#header{
position: relative;
top: 40%;
height:10%
background-color: #2c2c2c;
color: #c4c3c3;
font-family: 'title';
}
Try to find the height of you elements in % so you can subtract them from the 50% measurement. This makes it so that your element will be perfectly centered.
In this case 50% will convert to 10% since the height is set to 10%.

Answer 3

Use flex to align child items. Oh, and you probably don’t want to set height and width to 100% on everything.
#media only screen and (min-width: 768px) {
.col-sm-1 {width: 8.33%; float: left;}
.col-sm-2 {width: 16.66%; float: left;}
.col-sm-3 {width: 25%; float: left;}
.col-sm-4 {width: 33.33%; float: left;}
.col-sm-5 {width: 41.66%; float: left;}
.col-sm-6 {width: 50%; float: left;}
.col-sm-7 {width: 58.33%; float: left;}
.col-sm-8 {width: 66.66%; float: left;}
.col-sm-9 {width: 75%; float: left;}
.col-sm-10 {width: 83.33%; float: left;}
.col-sm-11 {width: 91.66%; float: left;}
.col-sm-12 {width: 100%; float: left;}
}
* {
color: #2c2c2c;
margin: 0;
font-family: 'Raleway';
}
html, body {
height: 100%;
}
#header {
height: 10%;
background-color: #2c2c2c;
color: #c4c3c3;
font-family: 'title';
display: flex;
align-items: center;
}
#logo-img {
height: 80%;
width: auto;
}
#logo-text {
color: white;
}
<div id="header">
<div class="col-xs-1 col-sm-1 col-md-1 col-lg-1" id="logo-img-div"><img id="logo-img" src="logo.png"></div>
<div class="col-xs-3 col-sm-3 col-md-3 col-lg-3" id="logo-text">Text</div>
</div>