* {
    margin: 0;
    padding: 0;
}
li {
    list-style: none;
}
.clear {
    clear: both;
}
.menus ul {

    width: 560px;
    position: relative;
    float: left;
}

.menus li {
    float: left;
    width: 150px;
    height: 40px;
    line-height: 40px;
    text-align: center;

    cursor: pointer;
    -webkit-transition: all 0.5s;
       -moz-transition: all 0.5s;
        -ms-transition: all 0.5s;
         -o-transition: all 0.5s;
            transition: all 0.5s;
}
.menus li:nth-child(2) {

    color: #fff;
}
.menus .bg {
    width: 150px;
    height: 40px;
    position: absolute;
    left: 0;
    top: 0;
    background: #009FE9;
    z-index: -1;
    -webkit-transition: all 0.5s;
       -moz-transition: all 0.5s;
        -ms-transition: all 0.5s;
         -o-transition: all 0.5s;
            transition: all 0.5s;
}

.tab {
    width: 750px;
    height: 500px;
  /*  margin-top: 20px;*/
   /* font-size: 40px;*/
    /*line-height: 500px;*/
    text-align: center;
    color: #888;
    /*font-weight: bold;*/
    display: none;
}
.show {
    display: block;
}
.title {
    text-align: center;
    padding: 20px;
    background: #ccc;
}
.tex{
    font-size: 20px;
    font-weight:900;
}