CSS

#ex1{    
display: table;    
margin:20px auto;
text-align: center;    
color:black;
border: 1px solid black;
padding: 5px 30px;
}
#ex1 [shadow]{
filter:drop-shadow(0 0 25px rgb(255,252,51));
padding:15px 0;
}
#ex1{
  background-color:black;
  color:gray;
  font-family:Arial;
}


#ex2{    
width: 100%;
color:white;
background-color: black;
font-family:arial;
}
#ex2>b{
display: block;
font-size: auto;
text-align: center;
}  
#ex2>div{
display: inline-block;
vertical-align: top;
}
#ex2>div>div{
border: 1px solid rgba(255,255,255,.5);
margin: 1%;
padding:1%;
}
#ex2>div>div>span{
position:absolute;
font-size:auto;
color:rgba(255,255,255,.5);
text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}
#ex2>div>div>div{
font-size: auto;
text-align: center;
overflow-x: hidden;
}
#ex2>div>div>svg{
width: 95%;
display: block;
margin: 10px auto 0 auto;
}
body{
  font-family:arial;
  margin:0;
  background-color:black;
}