Answers for "vertical align div block"

vertical align css

.container{
  display: table;
}

.div-inside-container{
  display: table-cell;
  vertical-align: middle;
}

center a div

<div id="outer">
  <div id="inner">Foo foo</div>
</div>
//css:, demo with border
<style>
#inner {
  display: table;
  margin: 0 auto;
  border: 1px solid black;
}

#outer {
  border: 1px solid red;
  width:100%
}
</style>