*, ::after, ::before {
    box-sizing: border-box
}
html {
    font-family: sans-serif;
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    -ms-overflow-style: scrollbar;
    -webkit-tap-highlight-color: transparent
}
@-ms-viewport {
    width: device-width
}
footer {
    display: block
}
body {
    margin: 0;
    background-color: #fff;
    color: #212529;
    text-align: left;
    font-weight: 400;
    font-size: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.5
}
h1 {
    margin-top: 0;
    margin-bottom: .5rem
}
p {
    margin-top: 0;
    margin-bottom: 1rem
}
a {
    background-color: transparent;
    color: #007bff;
    text-decoration: none;
    -webkit-text-decoration-skip: objects
}
a:hover {
    color: #0056b3;
    text-decoration: underline
}
::-webkit-file-upload-button {
    font: inherit;
    -webkit-appearance: button
}
.container {
    margin-right: auto;
    margin-left: auto;
    padding-right: 15px;
    padding-left: 15px;
    width: 100%
}
@media (min-width: 576px) {
    .container {
        max-width: 540px
    }
}
@media (min-width: 768px) {
    .container {
        max-width: 720px
    }
}
@media (min-width: 992px) {
    .container {
        max-width: 960px
    }
}
@media (min-width: 1200px) {
    .container {
        max-width: 1140px
    }
}
.row {
    display: -ms-flexbox;
    display: flex;
    margin-right: -15px;
    margin-left: -15px;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap
}
.col {
    position: relative;
    padding-right: 15px;
    padding-left: 15px;
    width: 100%;
    min-height: 1px
}
.col {
    max-width: 100%;
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1
}
.btn-success:not(:disabled):not(.disabled).active:focus, .btn-success:not(:disabled):not(.disabled):active:focus {
    box-shadow: 0 0 0 .2rem rgba(40, 167, 69, .5)
}
.btn-info:not(:disabled):not(.disabled).active, .btn-info:not(:disabled):not(.disabled):active {
    border-color: #10707f;
    background-color: #117a8b;
    color: #fff
}
.btn-info:not(:disabled):not(.disabled).active:focus, .btn-info:not(:disabled):not(.disabled):active:focus {
    box-shadow: 0 0 0 .2rem rgba(23, 162, 184, .5)
}
.btn-warning:not(:disabled):not(.disabled).active, .btn-warning:not(:disabled):not(.disabled):active {
    border-color: #c69500;
    background-color: #d39e00;
    color: #212529
}
.btn-warning:not(:disabled):not(.disabled).active:focus, .btn-warning:not(:disabled):not(.disabled):active:focus {
    box-shadow: 0 0 0 .2rem rgba(255, 193, 7, .5)
}
.justify-content-center {
    -ms-flex-pack: center!important;
    justify-content: center!important
}
.float-right {
    float: right!important
}
.text-center {
    text-align: center!important
}
@media print {
    *, ::after, ::before {
        box-shadow: none!important;
        text-shadow: none!important
    }
    a:not(.btn) {
        text-decoration: underline
    }
    p {
        orphans: 3;
        widows: 3
    }
    body {
        min-width: 992px!important
    }
    .container {
        min-width: 992px!important
    }
}
.open .dropdown-toggle.btn-primary .btn-primary:not(:disabled):not(.disabled).active, .btn-primary:not(:disabled):not(.disabled):active {
    outline: none !important;
    border: 2px solid #1aaf5d;
    background-color: #1aaf5d;
    color: #fff
}
#sentence {
    vertical-align: middle
}
.main-wrapper {
    display: flex;
    height: 100vh;
    align-items: center;
  margin:auto; 
}
a {
    text-decoration: none
}
a:hover {
    text-decoration: none
}
footer {
    padding-top: 40px;
    padding-bottom: 0px
}
h1 {
    font-weight: 400
}
.layui-btn {
    vertical-align: middle
}
.layui-btn {
    -webkit-user-select: none;
    -ms-user-select: none;
    -moz-user-select: none
}
body, button, div, h1, p {
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0)
}
a:active, a:hover {
    outline: 0
}
button {
    font-family: inherit;
    font-size: inherit;
    font-style: inherit;
    font-weight: inherit;
    outline: 0
}
body {
    line-height: 24px;
    font: 14px Helvetica Neue, Helvetica, PingFang SC, Tahoma, Arial, sans-serif
}
a {
    color: #333;
    text-decoration: none
}
a:hover {
    color: #777
}
@font-face {
    font-family: layui-icon;
    src: url(../font/iconfont.eot?v=240);
    src: url(../font/iconfont.eot?v=240#iefix) format('embedded-opentype'), url(../font/iconfont.svg?v=240#iconfont) format('svg'), url(../font/iconfont.woff?v=240) format('woff'), url(../font/iconfont.ttf?v=240) format('truetype')
}
.layui-btn {
    outline: 0;
    -webkit-appearance: none;
    transition: all .3s;
    -webkit-transition: all .3s;
    box-sizing: border-box
}
.layui-btn {
    display: inline-block;
    height: 38px;
    line-height: 38px;
    padding: 0 18px;
    background-color: #009688;
    color: #fff;
    white-space: nowrap;
    text-align: center;
    font-size: 14px;
    border: none;
    border-radius: 2px;
    cursor: pointer
}
.layui-btn:hover {
    opacity: .8;
    filter: alpha(opacity=80);
    color: #fff
}
.layui-btn:active {
    opacity: 1;
    filter: alpha(opacity=100)
}
.layui-btn+.layui-btn {
    margin-left: 10px
}
.layui-btn-normal {
    background-color: #1E9FFF
}