/************* 重置样式开始 *************/
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}

body {
    line-height: 1;
}

ol,
ul {
    list-style: none;
}

blockquote,
q {
    quotes: none;
}

blockquote:before,
blockquote:after,
q:before,
q:after {
    content: '';
    content: none;
}

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

a {
    text-decoration: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/************* 重置样式结束 *************/

/************* flex开始 *************/
.flex {
    display: flex;
}

.flex-1 {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
}

.flex-start-start {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
}

.flex-start-center {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.flex-start-end {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
}

.flex-start-between {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.flex-start-around {
    display: flex;
    align-items: flex-start;
    justify-content: space-around;
}

.flex-center-start {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.flex-center-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-center-end {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}


.flex-center-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-center-around {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.flex-end-start {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
}

.flex-end-center {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.flex-end-end {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
}

.flex-end-between {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.flex-end-around {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
}

.flex-column-start-between {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
}

.flex-column-center-start {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
}

.flex-column-center-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.flex-column-center-between {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.flex-column-center-around {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
}


.flex-wrap-between {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}


/************* flex结束 *************/


/*清空button默认样式*/
.reset-button {
    border: none;
    background-color: transparent;
    outline: none;
}

/*默认背景样式*/
.default-bg {
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 100% 100%;
}

/*必填字段，红色星星*/
.is-require {
    position: relative;
}

.is-require::after {
    content: '*';
    color: #F30000;
    display: inline-block;
    margin-left: .05rem;
}

/*图片宽度100%*/
.img-w-100 {
    display: inline-block;
    width: 100%;
}

/*图片高度100%*/
.img-h-100 {
    display: inline-block;
    height: 100%;
}

/*图片宽高100%*/
.img-w-h-100 {
    display: inline-block;
    width: 100%;
    height: 100%;
}