登录页面.css
*{
/* 初始化 */
margin: 0;
padding: 0;
box-sizing: border-box;
}
body{
height: 100vh;
/* 弹性布局 居中显示 */
display: flex;
justify-content: center;
align-items: center;
/* 渐变背景 */
background: linear-gradient(to top left,#ffe29f,#ffa99f,#ff719a);
/* 溢出隐藏 */
overflow: hidden;
}
.container{
text-align: center;
color: #fff;
}
.container h1{
font-size: 40px;
font-weight: 100;
letter-spacing: 2px;
margin-bottom: 15px;
/* 过渡效果 */
transition: 1s ease-in-out;
}
.form{
display: flex;
flex-direction: column;
align-items: center;
position: relative;
z-index: 2;
opacity: 1;
/* 不透明度改变时的过渡效果 */
transition: opacity 0.5s;
}
.form input{
outline: none;
border: 1px solid rgba(255,255,255,0.4);
background-color: rgba(255,255,255,0.2);
width: 250px;
padding: 10px 15px;
border-radius: 3px;
margin: 0 auto 10px auto;
text-align: center;
color: #fff;
font-size: 15px;
transition: 0.25s;
}
.form input::placeholder{
color: #fff;
font-size: 14px;
font-weight: 300;
}
.form input:hover{
background-color: rgba(255,255,255,0.4);
}
.form input:focus{
background-color: #fff;
width: 300px;
color: #ff719a;
}
.btn-login{
outline: none;
background-color: #fff;
color: #ff719a;
border: none;
width: 250px;
padding: 10px 15px;
border-radius: 3px;
font-size: 15px;
cursor: pointer;
transition: 0.25s;
}
.btn-login:hover{
background-color: #f5f7f9;
}
/* 背景方块 */
.bg-squares{
list-style: none;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
}
.bg-squares li{
width: 40px;
height: 40px;
background-color: rgba(255,255,255,0.15);
position: absolute;
bottom: -160px;
/* 执行动画：动画名 时长 线性 无限次播放 */
animation: square 20s linear infinite;
}
/* 为每一个方块设置不同的位置、大小、动画延迟时间、动画时长、背景色 */
.bg-squares li:nth-child(1){
left: 10%;
}
.bg-squares li:nth-child(2){
left: 20%;
width: 80px;
height: 80px;
/* 动画延迟时间 */
animation-delay: 2s;
/* 动画时长 */
animation-duration: 17s;
}
.bg-squares li:nth-child(3){
left: 25%;
animation-delay: 4s;
}
.bg-squares li:nth-child(4){
left: 40%;
width: 60px;
height: 60px;
background-color: rgba(255,255,255,0.25);
animation-duration: 22s;
}
.bg-squares li:nth-child(5){
left: 70%;
}
.bg-squares li:nth-child(6){
left: 80%;
width: 120px;
height: 120px;
background-color: rgba(255,255,255,0.2);
animation-delay: 3s;
}
.bg-squares li:nth-child(7){
left: 32%;
width: 160px;
height: 160px;
animation-delay: 7s;
}
.bg-squares li:nth-child(8){
left: 55%;
width: 20px;
height: 20px;
animation-delay: 15s;
animation-duration: 40s;
}
.bg-squares li:nth-child(9){
left: 25%;
width: 10px;
height: 10px;
background-color: rgba(255,255,255,0.3);
animation-delay: 2s;
animation-duration: 40s;
}
.bg-squares li:nth-child(10){
left: 90%;
width: 160px;
height: 160px;
animation-delay: 11s;
}
.container.success h1{
transform: translateY(75px);
}
.container.success .form{
opacity: 0;
visibility: hidden;
}
/* 定义动画 */
@keyframes square {
0%{
transform: translateY(0);
}
100%{
transform: translateY(-120vh) rotate(600deg);
}
}
