mahout declare

/declare config(header: #000, bg: https://i.imgur.com/OkoEgje.png)
<div style="text-align: center; margin: auto; color: #f8efea"><br> <h1 style="background: rgba(0, 0, 0, .7); text-shadow: 1px -1px 2px #000; border-radius: 5ex 0ex;">MiniOX de <b style="color: crimson">Mahoutsukai no Yome </b></h1> <br><br> <button style="background: url(https://i.pinimg.com/originals/bf/00/5e/bf005ebc9e310ca2f218b27eefd33c3f.png) no-repeat; background-size: cover; width: 160px; height: 160px; border: 0px solid transparent; color: green; text-shadow: 1px 1px 2px #000;  position: relative;" name="joinRoom" value="arenadebatalla"><span style="position: absolute; margin-top: 60px; margin-left: 12px; width: 150px;" >Go Arena <br>de Batalla</span></button><br></div>