border-radius的使用 css样式

#add-friend-btn {
background-color: #4D90FE;
border: 1px solid #3079ED;
border-radius: 3px 3px 3px 3px;
cursor: pointer;
float: left;
height: 30px;
line-height: 20px;
margin-left: 50px;
width: 80px;

color: #CCCCCC;
}