My Inline-Block Elements Are Not Lining Up Properly

HTML Inline-Block DIVs Not Lining Up

display: inline-block is working correctly in your example. What you need to add is vertical-align: top to your .topInfo div, and get rid of the default margin on your .topInfo p tag. Also, you need to make sure that there is enough room for the .topInfo div to sit to the side of the .topThumbnail div, otherwise it will wrap to the next line.

Like this:

My inline-block elements are not lining up properly

10.8 Line height calculations: the 'line-height' and 'vertical-align' properties

The baseline of an 'inline-block' is the baseline of its last line box in the normal flow, unless it has either no in-flow line boxes or if its 'overflow' property has a computed value other than 'visible', in which case the baseline is the bottom margin edge.

This is a common issue involving inline-block elements. In this case, the default value of the vertical-align property is baseline. If you change the value to top, it will behave as expected.

Updated Example

.position-data {
vertical-align: top;

`Display: Inline-Block` elements not aligning correctly

Just add vertical-align: top to div.col (by default an inline element has vertical-align set to baseline -- you just need to tell it align to the top instead).

div.canvas {
background-image: url(//;
padding: 100px 0;
background-color: #F2E394;
text-align: center;
div.col {
width: 50%;
display: inline-block;
vertical-align: top;
/* Device Mockups */
div#phone {
width: 540px;
height: 540px;
background: url(//;
background-size: contain;
background-position: center center;
position: relative;
margin: 0 auto;
div#phone div.frame {
position: absolute;
top: 85px;
bottom: 85px;
left: 165px;
right: 165px;
overflow-x: hidden;
overflow-y: auto;
border-radius: 3px;
box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.5);
background: white;
<div class="canvas">  <div class="col">    <div id="phone">      <div class="frame">      </div>    </div>  </div><div class="col ta-l">    <h1>Header 1</h1>  </div></div>

inline-block elements not lining up

You can add vertical-align: top; to the divs.

Why my inline-block divs are not aligned when only one of them has text?

This is the consequence of the "baseline" vertical alignment in CSS. From the CSS 2.1 spec, section 10.8 Line height calculations: the 'line-height' and 'vertical-align' properties


Align the baseline of the box with the baseline of the parent box. If the box
does not have a baseline, align the bottom margin edge with the parent's baseline.
(my emphasis)

Because the default alignment for the inline-blocks is "baseline", unless it is overridden, this rule applies. When text is put in the inline-block, that text will create a baseline for the inline-block and the first (non-bolded) sentence applies.

When there is no text in the inline-block, then it has no baseline and so the second (bolded) sentence applies.

In the JSFiddle here: I have removed from your example the margin:1em which was creating (at least for me) a misleading illusion, and added the text baseline to show where the baseline of the containing box is. The baseline is along the bottom of the word "baseline", so you can see that the empty inline-block has its bottom margin edge aligned with the parent's baseline as required by the CSS rule above.

HTML/CSS Issues with aligning to 'inline-block' elements side by side

This Works:

vertical-align: top;

Why are these two inline-blocks not aligned?

Do vertical-align:top on whatever has inline-block.

.calendar { vertical-align: top; }

Explanation: inline-blocks are still "in-line" and the vertical alignment is baseline meaning they aren't consistent and it will vary on their height, top makes them consistently start at the top.

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