></div><dom-module id="strand-modal"><template><style>:host{position:relative;display:block}:host([hidden]){display:none}#blocker{position:fixed;left:0;top:0;bottom:0;right:0;background-image:radial-gradient(rgba(0,0,0,.25) 0,rgba(0,0,0,.75) 100%);display:-ms-flexbox;display:flex;-ms-flex-pack:center;justify-content:center;-ms-flex-align:center;align-items:center}#close{position:absolute;top:10px;right:15px;cursor:pointer;color:#aaa}#close:hover{color:#333}#container{position:relative;border-radius:4px;box-