button.mailbox-attachment-close {\n  padding: 0;\n  background-color: transparent;\n  border: 0;\n}\n\na.close.disabled, a.disabled.mailbox-attachment-close {\n  pointer-events: none;\n}\n\n.toast {\n  -ms-flex-preferred-size: 350px;\n  flex-basis: 350px;\n  max-width: 350px;\n  font-size: 0.875rem;\n  background-color: rgba(255, 255, 255, 0.85);\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.1);\n  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);\n  opacity: 0;\n  border-radius:...

:not(.disabled):hover{opacity:.75}button.close,button.mailbox-attachment-close{padding:0;background-color:transparent;border:0}a.close.disabled,a.disabled.mailbox-attachment-close{pointer-events:none}.toast{-ms-flex-preferred-size:350px;flex-basis:350px;max-width:350px;font-size:.875rem;background-color:rgba(255,255,255,.85);background-clip:padding-box;border:1px solid rgba(0,0,0,.1);box-shadow:0 .25rem .75rem rgba(0,0,0,.1);opacity:0;border-radius:.25rem}.toast:not(:last-child){margin-bottom:.7...