#search {/* border: 2px solid #e1e1e1; */background: white;padding: 5px 15px;margin: 0px 0;-webkit-border-radius: 20px;-moz-border-radius: 20px;border-radius: 20px;display: inline-block;width: 100%;} code example

Example: css circle border

.circle {
    background-color:#fff;
    border:1px solid red;    
    height:100px;
    border-radius:50%;
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    width:100px;
}
<div class="circle"></div>