#"bootstrap iframe height 100%"
The iframe, and any of it‘s containers must be 100% height..
body,html,.main-display-area,.col-md-7 {
height:100%;
}
http://stackoverflow.com/questions/20357992/iframe-in-bootstrap-will-not-take-up-100-of-height
原文：http://www.cnblogs.com/dream-bccb/p/4148744.html