css基础

去除input边框

style="border-left:0px;border-top:0px;border-right:0px;border-bottom:1px;outline:none;

按钮动态

.header-middle-btn {    border: 5px solid #FFAA00;    color: #FFAA00;    text-align: center;    text-decoration: none;    display: inline-block;    font-size: 16px;    transition-duration: 0.4s;    cursor: pointer;}.header-middle-btn:hover {    color: white;    background-color: #FFAA00;}