.container max-width:1100px; margin:auto; padding:20px;h1,h2,h3,h4 color:#2c7be5; img width:50%; display:block; margin:20px auto; border-radius:10px;video display:block; margin:20px auto; max-width:100%; border-radius:10px;table read more width:100%; more info border-collapse:collapse; website margin:20px Zigbee smart radiator valve 0;th back