.bighead {
width: 300px;
height: 300px;
border: 1px solid gray;
overflow: hidden;
border-radius: 150px;
position:relative;
}
.bighead img {
width: 100%;/* margin-top:100px; 調整圖片重點位置*/
opacity:0.7;fillter:alpha(opacity=70);
}
.outside{
width: 300px;
height: 300px;
border:1px solid gray;
border-radius:150px;
position:absolute;
background:radial-gradient( circle closest-corner, red , orange, yellow, green, blue, indigo, violet);
background-size:cover;
}
