4 Product in column successful, IE error.

Hi team I have done below changes to the css to work 4 column display in shop page. and its working fine with Chrome and Firefox, but IE not (Internet Explorer has stopped working)

I did some change to the below like body.boxed #page { width: 1270px; same like .ak-container. but still error closing the browser.

.ak-container {
width: 1250px;
margin: 0px auto;
}
#primary-wrap {
width: 78%;
float: left;
}
.both-sidebar #secondary.secondary-right {
float: right;
width: 20 %
}
body.boxed #page {
width: 1170px;
margin: 0 auto;
background: #FFF;
}