body,
div,
span,
header,
footer,
nav,
section,
aside,
article,
ul,
dl,
dt,
dd,
li,
a,
p,
h1,
h2,
h3,
h4,
h5,
h6,
i,
b,
textarea,
button,
input,
select,
figure,
figcaption {
    padding: 0;
    margin: 0;
    list-style: none;
    font-style: normal;
    text-decoration: none !important;
    border: none;
    color: #333;
    font-weight: normal;
    box-sizing: border-box;
    scrollbar-width: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", PingFangSC, NotoSansHans;
}


/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/

::-webkit-scrollbar {
    width: 0px;
    height: 0px;
    background-color: #F5F5F5;
}

/*定义滚动条轨道 内阴影+圆角*/

::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 1px rgba(0, 0, 0, 0);
    border-radius: 10px;
    background-color: #F5F5F5;
}

/*定义滑块 内阴影+圆角*/

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #555;
}

video::-webkit-media-controls {
    display: none !important;
}

input[type="button"],
input[type="submit"],
input[type="search"],
input[type="reset"] {
    -webkit-appearance: none;
}

textarea {
    -webkit-appearance: none;
}

html,
body {
    width: 100%;
    background-color: #F5F5F5;
}

.clear:after {
    content: '';
    display: block;
    clear: both;
}

.clear {
    zoom: 1;
}

.back_img {
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

.margin {
    margin: 0 auto;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.hide {
    display: none;
}

.show {
    display: block;
}

.ellipsis {
    /*文字超出不折行，...省略*/
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.paddingTop {
    padding-top: 1.95rem;
}

.animation_opactiy {
    animation: backOpacity 2s ease-in-out infinite;
}

.btn-default {
    text-shadow: none !important;
}

@keyframes backOpacity {
    0% {
        opacity: 1
    }

    25% {
        opacity: .5
    }

    50% {
        opacity: 1
    }

    75% {
        opacity: .5
    }

    100% {
        opacity: 1
    }
}

.row.no-gutter {
    margin-left: 0;
    margin-right: 0;
}

.row.no-gutter [class*='col-'] {
    padding-right: 0;
    padding-left: 0;
}