Difference between revisions of "Team:TJU China/Model"

Line 9: Line 9:
  
 
</head>
 
</head>
 +
<style>
 +
      /* 用于导航栏的格式要求 */
 +
 +
  * {
 +
    margin: 0;
 +
    padding: 0;
 +
    list-style-type: none;
 +
    list-style-image: none !important;
 +
}
 +
 +
ul.drop {
 +
    padding-left: 0;
 +
 +
}
 +
 +
ul {
 +
    list-style-type: none !important;
 +
}
 +
 +
li {
 +
    list-style-type: none !important;
 +
}
 +
 +
.nav_logo_pic {
 +
    width: 20px;
 +
    height: 20px;
 +
    margin-top: 15px;
 +
    float: left;
 +
    margin-left: 30px;
 +
 +
}
 +
 +
.nav_logo_pic img {
 +
    max-width: 100%;
 +
    height: auto;
 +
}
 +
 +
.nav {
 +
    list-style-type: none;
 +
    background: #ffffff;
 +
    color: #4e72b8;
 +
    width: 100%;
 +
    height: 52px;
 +
    padding: 0px;
 +
    position: fixed;
 +
    top: 16px;
 +
    text-align: center;
 +
    background-size: cover;
 +
    font-family: "Microsoft YaHei", "Raleway", sans-serif;
 +
    letter-spacing: 0px;
 +
    z-index: 100;
 +
}
 +
 +
.logo {
 +
    position: fixed;
 +
    margin-left: 20px;
 +
    margin-top: 5px;
 +
    width: 80px;
 +
    height: 40px;
 +
    z-index: 101;
 +
}
 +
 +
.logo_picture {
 +
    max-width: 100%;
 +
    height: auto;
 +
}
 +
 +
.main {
 +
    list-style-type: none;
 +
    display: flex;
 +
    justify-content: space-around;
 +
}
 +
 +
.main li {
 +
    list-style-type: none;
 +
}
 +
 +
.main>li {
 +
    list-style-type: none;
 +
    width: 13%;
 +
}
 +
 +
.main>li a {
 +
    list-style-type: none;
 +
    border-left: 0px solid rgba(23, 23, 50, 1);
 +
 +
}
 +
 +
.nav a {
 +
    list-style-type: none;
 +
    text-decoration: none;
 +
    color: #4e72b8;
 +
    text-transform: capitalize;
 +
    font-family: monospace;
 +
    display: block;
 +
    padding: 14px 15px;
 +
 +
    font-size: 15px;
 +
    font-weight: bold;
 +
    font-family: "Microsoft YaHei", "Raleway", sans-serif;
 +
}
 +
 +
.nav a:hover {
 +
    list-style-type: none;
 +
    background: #eee;
 +
}
 +
 +
.drop li {
 +
    list-style-type: none;
 +
    opacity: 0;
 +
    transform-origin: top center;
 +
}
 +
 +
.drop li a {
 +
    list-style-type: none;
 +
    background-color: #ffffff;
 +
 +
    padding: 10px 0;
 +
}
 +
 +
.nav ul li {
 +
    list-style-type: none;
 +
}
 +
 +
.nav ul li ul {
 +
    list-style-type: none;
 +
    display: none;
 +
    width: 100%;
 +
    margin-left: 0;
 +
margin-top: 0;
 +
}
 +
 +
.nav ul li:hover ul {
 +
    list-style-type: none;
 +
    display: block;
 +
}
 +
 +
.nav ul li ul li {
 +
    width: 100%;
 +
    list-style-type: none;
 +
    margin-top: 0;
 +
    margin-bottom: 0;
 +
}
 +
 +
/*------------- menu1 animation---------------*/
 +
 +
.main li:hover .menu1 li:first-of-type {
 +
    animation: menu1 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu1 li:nth-of-type(2) {
 +
    animation: menu1 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu1 li:nth-of-type(3) {
 +
    animation: menu1 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu1 li:last-of-type {
 +
    animation: menu1 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
@keyframes menu1 {
 +
    from {
 +
        opacity: 0;
 +
        transform: translateX(30px) rotateY(90deg);
 +
    }
 +
    to {
 +
        opacity: 1;
 +
        transform: translateX(0) rotateY(0);
 +
    }
 +
}
 +
 +
/*------------- menu2 animation -------------------*/
 +
 +
.main li:hover .menu2 li:first-of-type {
 +
    animation: menu2 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu2 li:nth-of-type(2) {
 +
    animation: menu2 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu2 li:nth-of-type(3) {
 +
    animation: menu2 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu2 li:nth-of-type(4) {
 +
    animation: menu2 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu2 li:last-of-type {
 +
    animation: menu2 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
@keyframes menu2 {
 +
    0% {
 +
        opacity: 0;
 +
        transform: scale(0.7);
 +
    }
 +
    50% {
 +
        opacity: 0.5;
 +
        transform: scale(1.1);
 +
    }
 +
    100% {
 +
        opacity: 1;
 +
        transform: scale(1);
 +
    }
 +
}
 +
 +
.main li:hover .menu7 li:first-of-type {
 +
    animation: menu7 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu7 li:nth-of-type(2) {
 +
    animation: menu7 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
.main li:hover .menu7 li:last-of-type {
 +
    animation: menu7 0s ease-in-out forwards;
 +
    animation-delay: 0s;
 +
}
 +
 +
@keyframes menu7 {
 +
    0% {
 +
        opacity: 0;
 +
        transform: rotateX(-90deg);
 +
    }
 +
    100% {
 +
        opacity: 1;
 +
        transform: rotateX(0);
 +
    }
 +
}
 +
 +
</style>
  
 
<body>
 
<body>

Revision as of 15:27, 16 October 2018

<!DOCTYPE >

test
When $a \ne 0$, there are two solutions to \(ax^2 + bx + c = 0\) and they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$