metamask-extension/ui/app/css/itcss/components/modal.scss

// Buy Modal
.buy-modal-content {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: 'DIN OT';
}

@media screen and (max-width: 575px) {
  .buy-modal-content-title-wrapper {
    justify-content: space-around;
    width: 100%;
    height: 100px;
  }

  .buy-modal-content-title {
    font-size: 26px;
    margin-top: 15px;
  }

  .buy-modal-content-options {
    flex-direction: column;
    padding: 5% 33%;
  }

  .buy-modal-content-footer {
    text-transform: uppercase;
    width: 100%;
    height: 50px;
  }

  div.buy-modal-content-option {
    display: flex;
    flex-direction: column;
    width: 80vw;
    height: 15vh;
    margin: 10px;
    text-align: center;
    border-radius: 6px;
    border: 1px solid $black;
    padding: 0% 7%;
    justify-content: space-around;

    div.buy-modal-content-option-title {
      font-size: 20px;
    }

    div.buy-modal-content-option-subtitle {
      font-size: 16px;
    }
  }
}

@media screen and (min-width: 576px) {
  .buy-modal-content-title-wrapper {
    justify-content: space-around;
    width: 100%;
    height: 110px;
  }

  .buy-modal-content-title {
    font-size: 26px;
    margin-top: 15px;
  }

  .buy-modal-content-footer {
    text-transform: uppercase;
    width: 100%;
    height: 50px;
  }

  .buy-modal-content-options {
    flex-direction: row;
    margin: 20px 0;
  }

  div.buy-modal-content-option {
    display: flex;
    flex-direction: column;
    width: 20vw;
    height: 18vw;
    text-align: center;
    border-radius: 6px;
    border: 1px solid $black;
    margin: 0 .5vw;
    justify-content: space-around;

    div.buy-modal-content-option-title {
      font-size: 20px;

      @media screen and (max-width: 679px) {
        font-size: 14px;
      }

      @media screen and (min-width: 1281px) {
        font-size: 26px;
      }
    }

    div.buy-modal-content-option-subtitle {
      font-size: 16px;
      padding: 0 10px;
      height: 25%;

      @media screen and (max-width: 679px) {
        font-size: 10px;
        padding: 0 10px;
        margin-bottom: 5px;
        line-height: 15px;
      }

      @media screen and (min-width: 680px) {
        font-size: 14px;
        padding: 0 4px;
        margin-bottom: 2px;
      }

      @media screen and (min-width: 1281px) {
        font-size: 20px;
        padding: 0;
      }
    }

    div.buy-modal-content-footer {
      margin-top: 8vh;
    }
  }
}

// Edit Account Name Modal
.edit-account-name-modal-content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
}

.edit-account-name-modal-cancel {
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 25px;
}

.edit-account-name-modal-title {
  margin: 15px;
}

.edit-account-name-modal-save-button {
  width: 33%;
  height: 45px;
  margin: 15px;
  font-weight: bold;
  margin-top: 25px;
}

.edit-account-name-modal-input {
  width: 90%;
  height: 50px;
  text-align: left;
  margin: 10px;
  padding: 10px;
  font-size: 18px;
}

// Account Details Modal
.account-details-modal-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
}

.account-details-modal-divider {
  width: 100%;
  height: 1px;
  margin: 10px 0px;
  background-color: $alto;
}

// New Account Modal
.new-account-modal-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  border: 1px solid #d8d8d8;
}