#content {
width:600px;
height:101px;
}
#box {
position:relative;
width:590px;
height:101px;
background:linear-gradient(to right,#5b6f9a,#3fb7ff);
}
.poke {
position:absolute;
display:block;
width:60px;
height:101px;
background:#ffffff;
border-radius:6px;
border:1px solid #4c4a4acf;
left:200px;
}