Difficulty creating a content grid layout using css and html - css

Question

I am trying to create a grid layout using tags and css. I need the grid system to hold four main blocks as portrayed in the image below. I have created a solution that works great in safari and chrome, but not so well in firefox as the titles overlap. Please see my code below, and maybe someone can see where I have gone wrong! I cant for the life of me find the problem.
HTML CODE:-
<div class="elements_wrapper">
<div id="element1">
<img class="align-image" src="img/image1"/>
<span class="element-title">Title</span>
<p class="element-explain">Main text goes here</p>
</div>
<div id="element2">
<img class="align-image" src="img/image2"/>
<span class="element-title">Title</span>
<p class="element-explain">Main text goes here</p>
</div>
<div id="element3">
<img class="align-image" src="img/image3"/>
<span class="element-title">Title</span>
<p class="element-explain">Main text goes here</p>
</div>
<div id="element4">
<img class="align-image" src="img/image4"/>
<span class="element-title">Title</span>
<p class="element-explain">Main text goes here</p>
</div>
</div>
CSS CODE:-
.elements_wrapper {
width:100%;
margin-left:-65px;
margin-top:110px;
padding-bottom:30px;
}
#element1{
position:absolute;
display:inline-block;
margin-left:30px;
padding-bottom:20px;
}
#element2 {
position:absolute;
display:inline-block;
margin-top:200px;
margin-left:30px;
padding-bottom:20px;
}
#element3 {
position:absolute;
display:inline-block;
margin-left:545px;
margin-top:200px;
padding-bottom:20px;
}
#element4 {
position:absolute;
display:inline-block;
margin-left:545px;
padding-bottom:20px;
}
.element-title {
font-family:helvetica, arial, serif;
color:black;
display:inline;
font-size:14pt;
font-weight:bold;
padding-top:15px;
}
.element-explain {
font-family:helvetica, arial, serif;
font-size:10pt;
float:left;
width:280px;
}
.align-image {
border: none;
float:left;
padding-right:15px;
}
My code works great in safari and chrome, but not that well in firefox, please help. Also, please let me know if the code I have already used is bad or needs changing to ensure cross browser compatibility. Thanks so much.

Answer 1

See the next example: http://jsfiddle.net/ZNSAX/2/

Answer 2

.element-explain {
font-family:helvetica, arial, serif;
font-size:10pt;
float:left;
width:280px;
}
Floating left here will cause this error. Firefox is a bit finicky with floating elements than Chrome and IE. Removing this should fix your problem.