new_app/src/style.css

@charset "utf-8";

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(0, 0, 0, 0.87);
  background-color: rgba(0, 0, 0, 0);

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}

a:hover {
  color: #535bf2;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}

a:hover {
  color: #535bf2;
}

/* body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
} */

body {
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 100% 100%;
  -webkit-animation: Gradient 15s ease infinite;
  animation: Gradient 15s ease infinite;
}

@-webkit-keyframes Gradient {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes Gradient {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

body,
html {
  height: 100%;
  overflow: hidden;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}

button:hover {
  border-color: #646cff;
}

button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

.card {
  padding: 2em;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  background-color: rgba(0, 0, 0, 0);
  /* text-align: center; */
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    /* background-color: #ffffff; */
  }

  a:hover {
    color: #747bff;
  }

  button {
    background-color: #f9f9f9;
  }
}

#main {
  width: 400px;
  margin-top: 10%;
  min-width: 100vh;
  float: none;
}

@media (min-width: 768px) {
  .container-fluid {
    width: 750px;
  }
}

@media (min-width: 992px) {
  .container-fluid {
    width: 970px;
  }
}

@media (min-width: 1200px) {
  .container-fluid {
    width: 100vw;
  }
}

#card1 {
  margin: 3% 0;
  border-radius: 3%;
  background-color: rgba(255, 255, 255, 0.8);
  box-shadow: none;
  border: none;
}

.btn:focus,
.btn:active {
  background-color: blue;
}

.btn {

  margin: 10px;
  width: 100px !important;
}

#reg {
  margin-left: 24%;
}

/* 验证码样式 */

.image {
  margin: 2px 0;
  display: flex;
}

#imginput {
  margin: 0 12px;
}