app/assets/stylesheets/overrides/_bootstrap.sass
.clearfix
*zoom: 1
.clearfix:before,
.clearfix:after
display: table
content: ""
line-height: 0
.clearfix:after
clear: both
.hide-text
font: 0/0 a
color: transparent
text-shadow: none
background-color: transparent
border: 0
.input-block-level
display: block
width: 100%
min-height: 30px
-webkit-box-sizing: border-box
-moz-box-sizing: border-box
box-sizing: border-box