.elementor-1661 .elementor-element.elementor-element-f60219d{--display:flex;--min-height:65px;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--align-items:stretch;--gap:10px 10px;--row-gap:10px;--column-gap:10px;--margin-top:0px;--margin-bottom:0px;--margin-left:0px;--margin-right:0px;--padding-top:0px;--padding-bottom:0px;--padding-left:10px;--padding-right:10px;--z-index:150;}.elementor-1661 .elementor-element.elementor-element-f60219d:not(.elementor-motion-effects-element-type-background), .elementor-1661 .elementor-element.elementor-element-f60219d > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-color:#FFFFFF00;}.elementor-1661 .elementor-element.elementor-element-08322b4{text-align:start;}.elementor-1661 .elementor-element.elementor-element-08322b4 img{width:20%;}.elementor-1661 .elementor-element.elementor-element-ea7a3c9{--display:flex;--min-height:400px;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--align-items:stretch;--gap:10px 10px;--row-gap:10px;--column-gap:10px;}.elementor-1661 .elementor-element.elementor-element-ea7a3c9:not(.elementor-motion-effects-element-type-background), .elementor-1661 .elementor-element.elementor-element-ea7a3c9 > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-color:#FFFFFF00;}.elementor-1661 .elementor-element.elementor-element-bb421a8{--display:flex;border-style:solid;--border-style:solid;}.elementor-1661 .elementor-element.elementor-element-bb421a8:not(.elementor-motion-effects-element-type-background), .elementor-1661 .elementor-element.elementor-element-bb421a8 > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-color:#FFFFFF;}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item{color:var( --e-global-color-primary );fill:var( --e-global-color-primary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item:hover,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item.elementor-item-active,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item.highlighted,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item:focus{color:var( --e-global-color-secondary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main:not(.e--pointer-framed) .elementor-item:before,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main:not(.e--pointer-framed) .elementor-item:after{background-color:var( --e-global-color-primary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--pointer-framed .elementor-item:before,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .e--pointer-framed .elementor-item:after{border-color:var( --e-global-color-primary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item.elementor-item-active{color:var( --e-global-color-secondary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main:not(.e--pointer-framed) .elementor-item.elementor-item-active:before,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main:not(.e--pointer-framed) .elementor-item.elementor-item-active:after{background-color:var( --e-global-color-primary );}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--pointer-framed .elementor-item.elementor-item-active:before,
					.elementor-1661 .elementor-element.elementor-element-838bb8d .e--pointer-framed .elementor-item.elementor-item-active:after{border-color:var( --e-global-color-primary );}.elementor-theme-builder-content-area{height:400px;}.elementor-location-header:before, .elementor-location-footer:before{content:"";display:table;clear:both;}@media(max-width:1024px){.elementor-1661 .elementor-element.elementor-element-f60219d{--padding-top:20px;--padding-bottom:20px;--padding-left:20px;--padding-right:20px;}}@media(max-width:767px){.elementor-1661 .elementor-element.elementor-element-f60219d{--min-height:60px;--flex-direction:column;--container-widget-width:100%;--container-widget-height:initial;--container-widget-flex-grow:0;--container-widget-align-self:initial;--flex-wrap-mobile:wrap;--justify-content:center;--border-radius:0px 0px 0px 0px;--padding-top:0px;--padding-bottom:0px;--padding-left:15px;--padding-right:15px;}.elementor-1661 .elementor-element.elementor-element-08322b4{text-align:start;}.elementor-1661 .elementor-element.elementor-element-08322b4 img{width:56px;height:19px;}.elementor-1661 .elementor-element.elementor-element-ea7a3c9{--min-height:40px;--justify-content:center;--align-items:center;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--gap:0px 0px;--row-gap:0px;--column-gap:0px;--border-radius:0px 0px 0px 0px;--padding-top:10px;--padding-bottom:20px;--padding-left:0px;--padding-right:0px;--z-index:999;}.elementor-1661 .elementor-element.elementor-element-bb421a8{--width:90%;--min-height:40px;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--justify-content:space-around;--align-items:center;border-width:1px 1px 1px 1px;--border-top-width:1px;--border-right-width:1px;--border-bottom-width:1px;--border-left-width:1px;--border-radius:15px 15px 15px 15px;--padding-top:0px;--padding-bottom:0px;--padding-left:0px;--padding-right:0px;}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main .elementor-item{padding-left:13px;padding-right:13px;padding-top:5px;padding-bottom:5px;}.elementor-1661 .elementor-element.elementor-element-838bb8d{--e-nav-menu-horizontal-menu-item-margin:calc( 28px / 2 );}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-nav-menu--main:not(.elementor-nav-menu--layout-horizontal) .elementor-nav-menu > li:not(:last-child){margin-bottom:28px;}.elementor-1661 .elementor-element.elementor-element-838bb8d .elementor-item:before{border-radius:15px;}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--animation-shutter-in-horizontal .elementor-item:before{border-radius:15px 15px 0 0;}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--animation-shutter-in-horizontal .elementor-item:after{border-radius:0 0 15px 15px;}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--animation-shutter-in-vertical .elementor-item:before{border-radius:0 15px 15px 0;}.elementor-1661 .elementor-element.elementor-element-838bb8d .e--animation-shutter-in-vertical .elementor-item:after{border-radius:15px 0 0 15px;}}/* Start custom CSS for container, class: .elementor-element-ea7a3c9 */.elementor-1661 .elementor-element.elementor-element-ea7a3c9 {
position: fixed;
bottom: 0;
width: 100vw
}

Este vas a pegar en el CSS de tu theme.

/* defaults: desk 20px, mobile 6px */
.joinchat {
–bottom: 80px;
}/* End custom CSS */