html - bootstrap row pseudo elements usage -

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im wondering , dont know answer bootstrap grid row using display:table , content:"" pseudo elements(after , before) . why using display table there .

.row:after,.row:before{ display:table; }

can explain why using ?

.row:before, .row:after { display: table; }

this supported browsers except ie(6/7). generates pseudo-element before , after content of element contains floats. setting display: table creates anonymous table-cell , new block formatting context. acts prevent top-margin collapse , improve consistency between modern browsers , ie(6/7).


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