.com-left{background-position:0 0;background-repeat:no-repeat;float:left;max-height:550px;overflow:hidden;width:35%}.com-right{float:left;margin-bottom:20px;margin-top:40px;width:65%}.com-item{float:left;margin-left:10%;margin-top:20px;min-height:210px;text-wrap:balance;width:40%}@media (max-width:1000px){.com-item{min-height:auto;width:90%}.com-left{float:left;max-height:100%;width:35%}}@media (max-width:640px){.com-right{width:95%}.com-left{display:none}}