html,body{margin: 0;padding: 0;} .pagebox{ position:relative; }@media only screen and (max-width: 768px){ .e_FlowCommonStyleBox-001 .stylebox_top { background-color: rgba(11, 73, 153, 1); height: 40px; width: auto; display: none !important; } .e_FlowCommonStyleBox-001 .stylebox_content { height: calc(100% - 48px); width: 100%; border-style: solid; border-color: #f0f0f0; border-width: 0px !important; } .e_FlowCommonStyleBox-001 .stylebox_top_line { height: 0px !important; background-color: rgba(240,240,240,1); } .e_FlowCommonStyleBox-001 .stylebox_bottom_line { height: 0px !important; background-color: rgba(240,240,240,1); } }