html,
body,
#app {
    font-size: 16px;
    width: 100%;
    height: 100%;
    background: #f4f4f4;
    font-family: 'Source Han Sans CN', 'PingFang SC', 'Avenir', 'Segoe UI', 'Hiragino Sans GB', STHeiti, 'Microsoft Sans Serif', 'WenQuanYi Micro Hei', sans-serif
}

body,
ol,
ul,
li,
h1,
h2,
h3,
h4,
h5,
h6,
p,
th,
td,
dl,
dd,
form,
fieldset,
legend,
input,
textarea,
select {
    margin: 0;
    padding: 0
}

img {
    width: 100%;
    height: 100%;
    border: 0;
    vertical-align: top
}

li {
    list-style: none
}

iframe {
    border: none
}

a {
    color: #333;
    text-decoration: none
}

ul,
ol,
li {
    list-style: none;
    padding: 0;
}

a:hover {
    text-decoration: none;
}

fieldset,
img {
    border: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

i {
    font-style: normal;
}

textarea {
    font-family: Microsoft YaHei;
    resize: none !important;
}

textarea,
button,
input,
select,
option {
    outline: none;
    border: none;
}