css画4个角的方框

.teamNum{

margin: 20px auto;

width: 80px;

height: 80px;

line-height:80px;

text-align: center;

border: 4px solid #eab460;

border-image: -webkit-linear-gradient( #eab460, #f38924) 4 4;

border-image: -moz-linear-gradient( #eab460, #f38924) 4 4;

border-image: linear-gradient( #eab460, #f38924) 4 4;

border-radius: 50%!important;

color: #fff;

font-size:32px;

}

<p class="teamNum">2队</p>