初始化css

@charset "UTF-8";
body,html,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,form,input,textarea,p,th,td {
  margin: 0;
  padding: 0;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
html{
  font-size: 13.33333333333vw;
}
body {
  font-size: 13px;
  color: #333333;
}

.flex-row {
  display: flex;
  flex-direction: row;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.justify-evenly {
  justify-content: space-evenly;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.items-center {
  align-items: center;
}

.flex-1 {
  flex: 1 1 0;
}

.flex-auto {
  flex: 1 1 auto;
}

.grow {
  flex-grow: 1;
}

.grow-0 {
  flex-grow: 0;
}

.relative {
  position: relative;
}
.absolute {
  position: absolute !important;
}

/* 外边距样式 */
.mt-5 { margin-top: 5px; }
.mr-5 { margin-right: 5px; }
.mb-5 { margin-bottom: 5px; }
.ml-5 { margin-left: 5px; }

.mt-10 { margin-top: 10px; }
.mr-10 { margin-right: 10px; }
.mb-10 { margin-bottom: 10px; }
.ml-10 { margin-left: 10px; }

.mt-15 { margin-top: 15px; }
.mr-15 { margin-right: 15px; }
.mb-15 { margin-bottom: 15px; }
.ml-15 { margin-left: 15px; }

.mt-20 { margin-top: 20px; }
.mr-20 { margin-right: 20px; }
.mb-20 { margin-bottom: 20px; }
.ml-20 { margin-left: 20px; }

.mt-25 { margin-top: 25px; }
.mr-25 { margin-right: 25px; }
.mb-25 { margin-bottom: 25px; }
.ml-25 { margin-left: 25px; }

.mt-30 { margin-top: 30px; }
.mr-30 { margin-right: 30px; }
.mb-30 { margin-bottom: 30px; }
.ml-30 { margin-left: 30px; }

.mt-35 { margin-top: 35px; }
.mr-35 { margin-right: 35px; }
.mb-35 { margin-bottom: 35px; }
.ml-35 { margin-left: 35px; }

.mt-40 { margin-top: 40px; }
.mr-40 { margin-right: 40px; }
.mb-40 { margin-bottom: 40px; }
.ml-40 { margin-left: 40px; }

.mt-45 { margin-top: 45px; }
.mr-45 { margin-right: 45px; }
.mb-45 { margin-bottom: 45px; }
.ml-45 { margin-left: 45px; }

.mt-50 { margin-top: 50px; }
.mr-50 { margin-right: 50px; }
.mb-50 { margin-bottom: 50px; }
.ml-50 { margin-left: 50px; }

/* 内边距样式 */
.pt-5 { padding-top: 5px; }
.pr-5 { padding-right: 5px; }
.pb-5 { padding-bottom: 5px; }
.pl-5 { padding-left: 5px; }

.pt-10 { padding-top: 10px; }
.pr-10 { padding-right: 10px; }
.pb-10 { padding-bottom: 10px; }
.pl-10 { padding-left: 10px; }

.pt-15 { padding-top: 15px; }
.pr-15 { padding-right: 15px; }
.pb-15 { padding-bottom: 15px; }
.pl-15 { padding-left: 15px; }

.pt-20 { padding-top: 20px; }
.pr-20 { padding-right: 20px; }
.pb-20 { padding-bottom: 20px; }
.pl-20 { padding-left: 20px; }

.pt-25 { padding-top: 25px; }
.pr-25 { padding-right: 25px; }
.pb-25 { padding-bottom: 25px; }
.pl-25 { padding-left: 25px; }

.pt-30 { padding-top: 30px; }
.pr-30 { padding-right: 30px; }
.pb-30 { padding-bottom: 30px; }
.pl-30 { padding-left: 30px; }

.pt-35 { padding-top: 35px; }
.pr-35 { padding-right: 35px; }
.pb-35 { padding-bottom: 35px; }
.pl-35 { padding-left: 35px; }

.pt-40 { padding-top: 40px; }
.pr-40 { padding-right: 40px; }
.pb-40 { padding-bottom: 40px; }
.pl-40 { padding-left: 40px; }

.pt-45 { padding-top: 45px; }
.pr-45 { padding-right: 45px; }
.pb-45 { padding-bottom: 45px; }
.pl-45 { padding-left: 45px; }

.pt-50 { padding-top: 50px; }
.pr-50 { padding-right: 50px; }
.pb-50 { padding-bottom: 50px; }
.pl-50 { padding-left: 50px; }

/* 字体大小样式 */
.fs-12 { font-size: 12px; }
.fs-13 { font-size: 13px; }
.fs-14 { font-size: 14px; }
.fs-15 { font-size: 15px; }
.fs-16 { font-size: 16px; }
.fs-17 { font-size: 17px; }
.fs-18 { font-size: 18px; }
.fs-19 { font-size: 19px; }
.fs-20 { font-size: 20px; }
.fs-21 { font-size: 21px; }
.fs-22 { font-size: 22px; }
.fs-23 { font-size: 23px; }
.fs-24 { font-size: 24px; }
.fs-25 { font-size: 25px; }

/* border-radius */
.b-radius-4 { border-radius: 4px; }
.b-radius-6 { border-radius: 6px; }
.b-radius-8 { border-radius: 8px; }
.b-radius-10 { border-radius: 10px; }
.b-radius-12 { border-radius: 12px; }
.b-radius-14 { border-radius: 14px; }
.b-radius-16 { border-radius: 16px; }
.b-radius-18 { border-radius: 18px; }
.b-radius-20 { border-radius: 20px; }