I prefer using inline-blocks over absolute positioning. Also, :before and :after create child elements (inside) the element you specify them on (at the beginning and end). For this, it would probably be best to have a wrapper (or inner) block, like so:
<div class="arrow">
<div class="inner-arrow">
FLECHA
</div>
</div>
Then the inner block is going to get most of the styling, as the wrapper is primarily there to contain the :before and :after. The wrapper (.arrow) needs to have font-size: 0 (or some other method to make the white-space around the inner block, .inner-arrow, go away).
.arrow {
font-size: 0;
}
.inner-arrow {
width:210px;
height:40px;
display: inline-block;
background-color:#CBCBCB;
text-align:center;
font-size:20px;
font-weight:bold;
line-height:40px;
vertical-align: middle;
}
Most of the styles for .arrow:before and .arrow:after will be the same, so we'll group those. Then specify the differences below (they have to be below to override the common styles).
.arrow:before,
.arrow:after {
content:'';
display: inline-block;
width:0;
height:0;
border:20px solid transparent;
vertical-align: middle;
}
.arrow:before {
border-top-color: #CBCBCB;
border-bottom-color: #CBCBCB;
border-right-color: #CBCBCB;
}
.arrow:after {
border-left-color: #CBCBCB;
}
This is all in the a fiddle.
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