Qué son y para qué sirven las etiquetas HTML

#iguru_soc_icon_wrap_62f767f72d1eb a{ background: transparent; }#iguru_soc_icon_wrap_62f767f72d1eb a:hover{ background: transparent; border-color: #7cbc61; }#iguru_soc_icon_wrap_62f767f72d1eb a{ color: #7cbc61; }#iguru_soc_icon_wrap_62f767f72d1eb a:hover{ color: #ffffff; }.iguru_module_social #soc_icon_62f767f72d2301{ color: #ffffff; }.iguru_module_social #soc_icon_62f767f72d2301:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62f767f72d2301{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2301:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2502{ color: #ffffff; }.iguru_module_social #soc_icon_62f767f72d2502:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62f767f72d2502{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2502:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2633{ color: #ffffff; }.iguru_module_social #soc_icon_62f767f72d2633:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62f767f72d2633{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2633:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2754{ color: #ffffff; }.iguru_module_social #soc_icon_62f767f72d2754:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62f767f72d2754{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62f767f72d2754:hover{ background: rgba(255,255,255,0.01); }