https://blog.csdn.net/xxxxxmiss/article/details/51534626
/*叉号改*/
input[type=search]::-webkit-search-cancel-button{
-webkit-appearance: none;
position: relative;
height: 20px;
20px;
border-radius: 50%;
background-color: #EBEBEB;
}
input[type=search]::-webkit-search-cancel-button{
20px; height: 40px;
background: url("../img/advise/close.png") no-repeat center;
background-size: 18px 18px;
}