* {
    margin: 0;
    padding: 0
}

html{
    font-size: 100px;
}

.p_bottom{
    padding-bottom: 1rem;
}

em, i {
    font-style: normal
}

li {
    list-style: none
}

img {
    border: 0;
    vertical-align: middle
}

button {
    cursor: pointer
}

a {
    text-decoration: none
}

button, input {
    font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, \\5B8B\4F53, sans-serif
}
body{
    color: #999999;
    background-color: #F8F8F8;
}
.content{
    /*padding-bottom: 80px;*/
}
.black_orange {
    color: #ffa500;
}
.border-tb {
    border-top: #efeff4 1px solid;
    border-bottom: #efeff4 1px solid;
    background-image: none;
}
.black_red {
    color: red;
}
.black_row {
    display: flex;
    justify-content: space-between;
}