@media (max-width: 991px){
.tpower_four .d_tab, .tpower_four .definitionBox{display:block;}
.tpower_four .d_tab{width:100%;}
.tpower_four .d_tab ul li{height: 40px;line-height: 40px;margin-left: 0;width:50%;margin-top: 10px;}
.tpower_four .d_tab ul li+li+li{display:none;}
.tpower_four .d_tab ul li i{font-size:14px;}

.tpower_four .definition_desc{display: flex;flex-direction: column-reverse;}
.tpower_four .equipment{display:block;}
.tpower_four .equipment div{display:none;}
.tpower_four .assembly_desc{float:left;width:100%;}
.tpower_four .assembly_left{float:right;width:100%;}
.tpower_four .assembly_desc h6{margin-bottom:0;}

.definitionBox .portlet:nth-child(1) .equipment{background: url(/zcdd/public/static/index/images/temp/c2_wap.png) no-repeat;width: 100%;background-size: 100%;margin-top: 20px;} 
.definitionBox .portlet:nth-child(2) .equipment{background: url(/zcdd/public/static/index/images/temp/c1_wap.png) no-repeat;width: 100%;background-size: 100%;margin-top: 20px;} 

}