html,
body,
#app {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

*,
*:before,
*:after {
  box-sizing: border-box;
}
body,
div,
h1,
h2,
h3,
h4,
h5,
h6,
p,
header,
ul,
li,
dl,
dt,
dd,
ol,
nav,
input,
footer {
  margin: 0;
  padding: 0;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
div {
  user-select: none;
}
input {
  border: none;
}
button,
input,
textarea {
  color: inherit;
  font: inherit;
}
div:focus {
  outline: none;
}

body::-webkit-scrollbar {
  width: 0;
}

.flex_box {
  display: flex;
}

.line_clamp1 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-all;
}