.tech .lcol
{
    width: 310px;
    display: inline-block;
    vertical-align: top;
}
.tech .rcol
{
    width: 635px;
    display: inline-block;
    margin-top: 1em;
    margin-bottom: 3em;
    vertical-align: top;
}
.tech .pagetop p
{
    font: 16px/20px 'CirceLight', 'Arial', sans-serif;
    margin: 1em 0;
}

.tech .pagetop h1
{
    margin: .7em 0;
}

.tech .a_col, .tech .i_col, .tech .r_col
{
    width: 186px;
    float: left;
}
.tech .i_col
{
    margin: 0 31px;
}
.tech a.circle
{
    display: block;
    width: 137px;
    height: 137px;
    background: url(../img/air.png) 0 100% no-repeat;
    margin-bottom: 3em;
    -webkit-transition: background 0.2s ease;
    -moz-transition: background 0.2s ease;
    -ms-transition: background 0.2s ease;
    transition: background 0.2s ease;
    -o-transition-property: background;
    -o-transition-duration: 0.2s;
}
.tech .a_col .circle:hover
{
    background-position: 0 0;
}
.tech .i_col .circle
{
    background-position: -217px 100%;
}
.tech .i_col .circle:hover
{
    background-position: -217px 0;
}
.tech .r_col .circle
{
    background-position: -433px 100%;
}
.tech .r_col .circle:hover
{
    background-position: -433px 0;
}
.tech .a_col div, .tech .i_col div, .tech .r_col div
{
    border-top: solid 1px #b2b2b2;
    
    padding: 1em 0;
}
.tech .images
{
    margin: 2em 0;
}