查看“MediaWiki:Common.css”的源代码

/* 这里放置的CSS将应用于所有皮肤 */
#contentwrapper{
    max-width: 1840px;


}
.button{
    background-color: #1795bb;
    border: none;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    display: inline-block;
    transition-duration: 0.4s;
    cursor: pointer;
    font-size: 1.3em;
    text-align: center;
    margin: 10px 5px;
    line-height: 1.2em;
    font-weight:bold;
}
.button:hover{
     background-color: #fff;
     color: #1795bb;
     border: 0px solid #ccc;
}